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SantaMonica
06-25-2017, 06:04 PM
RAIN2(TM)


Pole Mountable
Waterfall Algae Scrubber
for saltwater sumps


With waterproof submersible GEM5(TM) lights and Green Grabber® screen. Eliminate water changes. Remove nuisance algae, nitrate and phosphate. Cultivate seaweed for feeding.



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Purchase here (http://www.santa-monica.cc/product.asp?itemid=87)


Videos:

Panorama of growth: https://www.youtube.com/watch?v=n9t7ZSSokgc
Growth review: https://www.youtube.com/watch?v=WF9C0I4MD_g
Install Review: https://www.youtube.com/watch?v=1kpWWDUxaQY
One-handed screen removal/replacement (47 seconds): https://youtu.be/zbgbCCpiJGc
First cleaning with just one light: https://www.youtube.com/watch?v=I5mG_uid4Ms
Unboxing: https://www.youtube.com/watch?v=gZ2itYGFFUo
Tray: https://www.youtube.com/watch?v=zVa650-QPTM
Water Pipe and Screen: https://www.youtube.com/watch?v=t2zHgcsxi7U
Dome Lid Cover, and Lights: https://www.youtube.com/watch?v=Ba5Hy9gr4FI
Mounting: https://www.youtube.com/watch?v=83_loN1d-Ng
First View: https://www.youtube.com/watch?v=uo0kOIns0GE

RAIN2 product dimensions: 10" long x 5" wide x 8" high (25cm long x 12.5cm wide x 20cm high).

Operates on both 120 and 240V. Can be shipped to any country

Welcome to algae scrubbers. All the oceans, reefs, lakes and rivers are naturally filtered only by algae, and all the organic particles remain in the water to feed the creatures. Reduce your glass cleaning and water changes, and create an environment for living micro-animals to grow inside the scrubber. No more dosing or possible overdosing. No more refilling. No more pale corals from low nutrients, and no more sick animals from high nutrients. Far more powerful than chaeto or refugiums, and does not remove the food particles. And you can use the algae as food!

From the inventor of the original waterfall algae scrubber in the year 2008 finally comes the first new version: the patent pending RAIN2. The underwater submersible GEM5 lights (also patent pending) allow the RAIN2 to be placed in your sump anywhere you like, as low to the water as you like, which saves a lot of space. And the pole mounting option (recommended but not included) means you don't even need a shelf or a bracket to place the RAIN2; just use your pole mount to set it on the bottom of your sump. You can fit two RAIN2 units into the same space that other waterfall algae scrubbers take for just one of their units. (Note: Because of the high filtering photosynthesis of our scrubbers, it's not recommended to run them with macro refugiums or chaeto reactors because the macro or chaeto will die and the nutrients will be absorbed by our scrubbers.)

Also included is a 2 mm thick, 2 sided, patent pending Green Grabber® algae attachment screen. The screen is also sold separately HERE (http://www.santa-monica.cc/product.asp?itemid=82) for DIY, and is the modern replacement for the old hand-scrapped plastic screens. It is 3D printed in Rough 3D(TM) and has no mortar coatings to fall off into your water, and has no metal pins to damage your corals. Also, similar to our air bubbling upflow UAS scrubbers, the screen of the RAIN2 is surrounded by air, so that when algae growth is strong on the screen the algae can get the carbon it needs from the CO2 in the air instead of from the alkalinity in your water. Thus the scrubber growth (filtering) is not limited by your alkalinity, and your alkalinity will stay at higher levels. This is compared to sealed chaeto reactors which don't contact air and thus must get all the carbon it needs from your alkalinity, which causes the alkalinity to drop faster.

The RAIN2 will do most of the filtering needed for your fresh or saltwater aquarium, and in most cases it will do all the filtering if it is the proper size for your amount of feeding that you do and the amount of rock that you have. Part of this filtering includes helping eliminate two very important things that drive most aquarium owners crazy: Algae and waterchanges. The filter works by growing algae on the screen, and these algae consume all the "bad" things out of the water*. This is how all the oceans, and all the lakes, are naturally filtered.

When ordering the RAIN2, you can choose 1, 2 or 4 of the GEM5 lights, which will be already mounted to the inside of the dome lid cover. The GEM5 lights are also sold separately HERE (http://www.santa-monica.cc/product.asp?itemid=84) and you can add them to the dome by using silicone glue.

Here are the differences in the RAIN2 units available:

Aquarium size: The RAIN2 with 1 GEM5 light has 24 square inches of 1-sided growth surface and is designed to be the only filter on an aquarium that is fed up to:

1 frozen cube per day, or
10 pinches of flake food per day, or
10 square inches (60 sq cm) of nori seaweed per day, or
0.1 dry ounce (2.8 grams) of pellet food per day.

Each 50 pounds (23 kg) of phosphate-soaked nuisance algae problem rock counts for an additional 1 cube a day. The level of light of the 1 GEM5 light works well in saltwater when nutrients in the water are low, and also works well in all freshwater systems. Up to 3 more GEM5 lights can be added at any time with silicone glue.

The RAIN2 with 2 GEM5 lights has 24 square inches of 2-sided growth surface and is designed to be the only filter on an aquarium that is fed up to:

2 frozen cubes per day, or
20 pinches of flake food per day, or
20 square inches (120 sq cm) of nori seaweed per day, or
0.2 dry ounce (5.6 grams) of pellet food per day.

Each 50 pounds (23 kg) of phosphate-soaked nuisance algae problem rock counts for an additional 1 cube a day. This medium level of light of 2 GEM5 lights works well when nutrients in saltwater are measurable, and also works well in all freshwater systems. Having lights on both sides of the screen allow it to grow a few more days before the growth starts shading the algae roots. Up to two more GEM5 lights can be added at any time with silicone glue.

The RAIN2 with 4 GEM5 lights lights has the same growth surface area and feeding as with 2 GEM5 lights, but the high level of light of 4 GEM5 lights works well when nutrients in saltwater are high, and when nutrients are very high in freshwater such as a highly fed community tank.

The amount of water in the aquarium, or the dimensions of the aquarium, are not important. If you feed more than the above amounts, you can use additional RAIN2 filters (or use our SURF, HOG or DROP filters) to add up to the amount that you are feeding, and then clean one of them at a time on a rotating schedule (one per week, etc). If you feed much less than these amounts, and the aquarium is very small, then it will still work but you just need to find a place where the filter will fit. It’s not possible to over-scrub.

Drain Pipe: Although a drain pipe is not needed, you can add one by using a standard 1” ID drain bulkhead which fits standard 1” (25mm) schedule 40 pvc pipe. The drain hole in the tray is 1 ¾” (44.5mm) diameter.

Head Room: If you are installing the RAIN2 in a sump or cabinet area with limited space, the RAIN2 will need 4" (10cm) above the top of the light-cover dome lid in order to remove the lid. However you can lift the whole tray unit up off of a pole mount, with as little as 2" (5cm) head room, and then remove the light-cover dome lid in your sink.

If you commonly have power outages, traditional waterfall scrubbers will dry out after a few hours, but you can prepare for and prevent this with your RAIN scrubber by placing it low enough in your sump (even slightly underwater if needed) so that when the power goes out the water level in the sump will rise up high enough to keep the screen under water. The GEM5 lights will not be harmed at all because they are designed for underwater use. With the screen submerged like this, it can last for several days with no flow or light.

The GEM5 lights can be put on a timer so that they stay on for part of the day, and off for the rest of the day, to possibly improve growth and filtering. However you can try 24 hours of light (no timer) if you like because sometimes it does work well in freshwater, or in saltwater with high measured nutrients such as more than 1.0 ppm phosphate.

The RAIN2 requires a water pump that can pump at least 200 gph (760 lph) water flow 24 hours a day. 300 gph (1135 lph) might be better to fill up all areas of the screen. The height (“head”) of the filter above the sump water level will require that the pump be able to pump up to that level and still be able to supply enough water. Generally, a 400 gph (1500 lph) pump with an adjustable output works in most cases. The water can also be fed from your display overflow; any type of overflow system (Herbie, siphon, etc) will work.

This RAIN2 will run on both 120V and 240V, and comes with a 10 ft (300 cm) power cord with a U.S. plug. If you require a different plug you can get an adapter at any local hardware or travel store, or online, or you can cut off the U.S. plug and install your own plug from a hardware store. It is a simple 2-prong plug, and no transformer is needed.

* Water Changes: If you have been doing water changes to reduce nitrate, phosphate, or nuisance algae, then an algae scrubber filter will greatly reduce the need for them and may possibly eliminate them. When algae grow in the filter, they consume nitrate, nitrite, phosphate, ammonia/ammonium, metals, CO2, and some toxins; so it’s just a matter of growing enough algae inside the filter to do the filtering you need, compared to how many nutrients you are putting into the tank with the food you feed (that is why the RAIN filter is sized for a certain amount of feeding per day). However, this filter (and algae in general) do not supply calcium, alkalinity, magnesium or strontium. So if you wish to reduce or eliminate water changes, you will need to supplement any calcium, alkalinity, magnesium or strontium that you were depending on water changes for. Freshwater aquariums, which may only need alkalinity (hardness) to be maintained, may get enough alkalinity from just doing evaporation top-offs with tap water from your sink.

If you want to DIY the same pole mount as our video, it's standard 2" schedule 40 pipe, a 1/4" flat pvc plate, and here are the fittings:

T-fitting in the video:
2" x 2" x 3/4" PVC Adapter (https://flexpvc.com/cart/agora.cgi?p=PVC-Fittings-Tees-Reducing&p_id=401-248&xm=on&ppinc=detail)

Flange cap in the video; it just needs it's rim to be grinded off so it sets flat:
2" PVC Flange Cap (https://flexpvc.com/cart/agora.cgi?p=PVC-Fittings-Flanges-Mounting&p_id=1005-2W&xm=on&ppinc=detail)

This one we have not tried, and it does not look as strong, but it does not need to be grinded:
2" PVC End Cap (https://flexpvc.com/cart/agora.cgi?p=PVC-Fittings-Caps-Mounting&p_id=MtCap020&xm=on&ppinc=detail)

This RAIN2 comes with a 6 month warranty: Warranty is for replacement or repair only; not a refund. Costs for shipping back to us are covered if you are in the U.S. Costs for shipping back to us are not covered if you are not in the U.S., however we will pay for shipping back to you. In either case, you will need to ship the entire unit back to us before we can ship a replacement. Warranty is limited to repair or replacement, and does not cover fish loss, personal injury, property loss, or direct, incidental or consequential damage arising from the use of it. The warranty and remedies set forth above are exclusive and in lieu of all others, whether oral or written, express or implied. We specifically disclaim any and all implied warranties, including but not limited to lost profits, downtime, goodwill, damage to or replacement of other equipment and property, and any costs of recovering animals, plants, tanks or other aquarium related items and/or equipment. We are not responsible for special, incidental, or consequential damages resulting from any breach of warranty, or replacement of equipment or property, or any costs of recovering or reproducing any equipment, animals or plants used or grown with this product.

Can be shipped to any country; you can find shipping costs by using the shopping cart; be sure to click "display rates". If you don't have a zip code, enter "zip code" instead. Note that shipping outside of the USA will probably require you to also pay an import charge when it arrives. We cannot mark it as "gift". The lowest cost (but slowest) foreign shipping is generally USPS Priority Mail International, but USPS Priority Express International is faster. The size of the shipping box is 12 x 10 x 6.5 inches (33 x 23 x 16 cm) and the weight is 5 pounds.

RAIN2 product (not shipping box) dimensions: 10" long x 5" wide x 8" high (25cm long x 12.5cm wide x 20cm high).

Operates on both 120 and 240V. Can be shipped to any country.

RAIN Instructions:

English (Word) (http://algaescrubber.net/RAIN-Instructions.doc)
English (PDF) (http://algaescrubber.net/RAIN-Instructions.pdf)
Spanish (Word) (http://www.algaescrubber.net/RAIN-Instructions-spanish.doc)
Spanish (PDF) (http://www.algaescrubber.net/RAIN-Instructions-spanish.pdf)
Italian (Word) (http://www.algaescrubber.net/RAIN-Instructions-italian.doc)
Italian (PDF) (http://www.algaescrubber.net/RAIN-Instructions-italian.pdf)

SantaMonica
09-15-2017, 08:24 PM
Italian instructions added:

http://www.algaescrubber.net/RAIN-Instructions-italian.pdf

Ratz99
10-24-2017, 05:35 AM
Have had one of these Rain 2 scrubbers with 4 lights on my tank for about 3 weeks now and my tank is looking 100%better. Fish look fantastic and my corals look better than I have ever seen them. Fantastic piece of kit. Would recommend it to everyone.

SantaMonica
10-24-2017, 10:01 AM
Welcome from UK, and great to hear.

SantaMonica
07-07-2018, 02:01 PM
Getting new stock shortly. All orders should be shipped within 2 weeks.

SantaMonica
07-20-2018, 06:25 PM
RAIN2 is back in stock, at www.Santa-Monica.cc

SantaMonica
12-21-2018, 12:53 PM
RAIN2 holiday colors!

7656

SantaMonica
05-10-2019, 06:08 PM
"My 2-light version of the Rain2 has been working phenomenal I think it’s one of the best money spent on my tank, finally I keep control of my nitrates and phosphates, appreciate it and thanks for such an amazing product! In my case it helps a lot specially because I am handicap and only able to use one hand, so with the pole mount it’s a breeze for me to remove it to clean and harvesting the algae. Again excellent product" -- Simon Romero, Weston, Florida, USA

7816 7817

SantaMonica
11-22-2019, 01:25 PM
View your growth while it's still running...


https://www.youtube.com/watch?v=n9t7ZSSokgc

SantaMonica
01-07-2021, 12:18 PM
Customer's RAIN2 (tm) scrubber with the LED dome lid taken off, and installed at the sump waterline of a saltwater tank. This installation is dead silent since the water has zero drop out of the drain, and it leaves lots of room above it. Can't tell how it's mounted, but looks like it might be on the optional pole mount, and some rocks are set on the white pole mount bottom plate.

Nice flow of water across the bottom of the screen; maybe too much flow, since you can see some spraying out of the red cap (and this is right after a cleaning, where the slot should have the easiest flow). Water cannot hurt the GEM5® lights, however.

8112

SantaMonica
01-10-2021, 12:21 PM
RAIN2 next to a SURF4

8114

SantaMonica
01-17-2021, 07:00 PM
Ring!
http://algaescrubber.net/forums/showthread.php?3713-Growth-Rings

8122

SantaMonica
06-20-2021, 07:19 PM
Green Grabber® screen removed from a RAIN2 waterfall algae scrubber in saltwater. It takes about 3 seconds to pull the red cap off and slide the screen out (once the dome lid is removed)..

8223

SantaMonica
07-11-2021, 08:57 PM
Nice clean installation in a new sump

8234

SantaMonica
08-12-2021, 01:58 PM
A reminder that you are never alone when you have an algae monster nearby...

8266

SantaMonica
08-25-2021, 03:15 PM
Another example of a down-in-the-sump RAIN2 install. This one is not down to the waterline, but it could be.

8277

SantaMonica
08-31-2021, 12:50 PM
This RAIN2 sets on rails across the top of the sump. But as you can see from the size of the drain pipe, the drain could have been the mount instead.

8280

SantaMonica
10-01-2021, 05:58 PM
Since the RAIN2 (also the RAIN4) has submersible lights that can be lowered down to the waterline, it frees up all the space above it. And since the optional pole mount for the RAIN2 (included with the RAIN4) uses only a 2" vertical pole, all the remaining space below it is available for sand, rock, media, pumps, or fish. And no shelf needed at all!

8299

SantaMonica
10-11-2021, 11:01 AM
RAIN2 (tm) down low low low to the water line. Dead silent because no dropping of water. Unaffected by rising sump water. And you can lift the whole unit out with one hand to take to your sink if needed.

8307

SantaMonica
10-15-2021, 06:06 PM
8312


RAIN2 first eight weeks in new saltwater setup

https://www.youtube.com/watch?v=PqJiw97qOqA

RAIN2 waterfall scrubber, first eight weeks in newly cycled saltwater tank.

Note that this particular one is mounted on a 1 inch vertical pipe in the sump, which uses the included 1 inch adapter to fit up into the bottom of the RAIN2 tray (this is not the same as the optional 2 inch pole mount)

The black case blocks all red light. And red light is used because it grows the most.

The RAIN2 is available here:
http://www.Santa-Monica.cc/product.asp?itemid=87

Algae scrubbers, otherwise known as "chaeto killers" because of the high filtering capacity compared to chaeto reactors, have the fastest and strongest rate of removal of nutrients from aquarium water of any type of natural algal filtration. All natural reefs, lakes and rivers are naturally filtered by algae.

The RAIN2 is the smaller RAIN, available with 1, 2 or 4 of our GEM5 (tm) lights.

The RAIN (tm) waterfall algae scrubber is the first new design from anyone anywhere since we introduced the first waterfall design in the year 2008. Back then it was simply designed to fit under the tank that we had at the time. It took a lot of time to remove and clean, and had other issues, but it was not for sale so it did not matter.

Since then all waterfall designs for sale by anyone have copied that design. That original design was ok at the time (you can find it posted on forums by searching "waterfall turf algae filter cheap and easy to build santamonica forum"

Well, now it is 2021 and almost all the shortcomings of that original waterfall design have been overcome with our new patented (10,655,095) RAIN designs. From the Green Grabber® 3D printed screen, to the underwater submersible and safe low-voltage (but high wattage) UL listed GEM5® lights, to the optional pole mount super low space requirement mounting system, we really hope you like the RAIN2.

Some RAIN videos:

RAIN one-handed screen removal and replacement (47 seconds)
https://youtu.be/zbgbCCpiJGc

RAIN2 with one GEM5 light, first scraping:
https://youtu.be/I5mG_uid4Ms

RAIN tray:
https://youtu.be/zVa650-QPTM

RAIN2 water pipe and screen:
https://www.youtube.com/watch?v=t2zHgcsxi7U

RAIN2 dome lid cover and lights:
https://www.youtube.com/watch?v=Ba5Hy9gr4FI

RAIN2 mounting:
https://www.youtube.com/watch?v=83_loN1d-Ng

RAIN2 unboxing:
https://www.youtube.com/watch?v=gZ2itYGFFUo

RAIN2 first view:
https://www.youtube.com/watch?v=uo0kOIns0GE



Other videos of interest:

SURF8 harvest with one strong light, and one regular light:
https://youtu.be/XfAMbQ3P6gE

SURF8 light-comparison harvesting test:
https://youtu.be/qb4Gi1OKCs8

SURF8 Unboxing and Installation:
http://youtu.be/RjNwPOn9AHg

SURF8 overview:
http://youtu.be/ZmYW2_jP7pk

SURF8 sound, and stability:
http://youtu.be/mYnCSI7Q7cg

SURF4 first 17 days of growth:
http://youtu.be/sFtQXIlM8h8

SURF4 overview:
http://youtu.be/fLTtOQUzmxY

SURF2 many harvests:
http://youtu.be/miWb4R8ajXw

DROP1.4 installed on a saltwater pond:
https://www.youtube.com/watch?v=qGxK28lUq4I

HOG1.3 from New to Green, in 3 Cleanings:
http://youtu.be/utu2SADmj2g

HOG1.3 unboxing and installation:
http://youtu.be/IWX6UGmSyV0

SURF2
http://youtu.be/LlL1xvll1r0

HOG1:
http://www.youtube.com/watch?v=s8ed-RD8S6U

HOG.5:
http://www.youtube.com/watch?v=o14culabk7k


More info, instructions, and purchases are available at:
www.Santa-Monica.cc


#algaereactor
#algaescrubber
#ats
#ballingmethod
#biopellets
#canisterfilter
#carbondosing
#chaeto
#chaetomorpha
#chaetoreactor
#filtration
#fleecefilter
#fluconazole
#freshwateraquarium
#gfo
#nitrate
#phosphate
#pelletreactor
#plantedtank
#proteinskimmer
#reef2reef
#reefcentral
#reeftank
#refugium
#rollfilter
#saltwatertank
#tritonmethod
#turfscrubber
#vibrant
#zeovit

SantaMonica
11-14-2021, 02:07 PM
All other waterfall algae scrubber designs (which we created in 2008; see Ats2008.org) require you to disconnect and disassemble the unit to get to the growth on the bottom tray. This was a problem. The RAIN2 and RAIN4, which we created to solve this issue, allow you to lift off the LED dome lid with one hand so you can observe any growth on the tray, and then you can lift the tray off of the water pipe also with one hand (as shown) to take it to your sink. And you never have to turn off the water flow when doing this.

8336

SantaMonica
11-23-2021, 12:26 PM
Inside a RAIN2 dome LED lid, showing two of the four GEM5 lights plugged in and operating on opposite sides of the screen, with one higher and one lower, so that the screen is not saturated on both sides with light at any one spot (this is a typical step for a new screen that is filling in).

8346

SantaMonica
01-11-2022, 09:30 PM
RAIN2 which looks like the first week operating in high-nutrient water. One of the GEM5 lights is turned on, at the bottom on one side. Note the good even flow of water off the bottom of the screen.

8391

SantaMonica
01-20-2022, 09:16 PM
RAIN2 waterfall algae scrubber from a saltwater sump, showing black slime growth that has just been brushed clean. Dark and black slime like this should be brushed completely off, including out of the screen holes, because the slime cannot hold on well to a waterfall screen (it can however hold on well to Green Grabber rocky textures in upflow models).

http://algaescrubber.net/forums/showthread.php?3740-Slime-is-the-best-filter
http://algaescrubber.net/forums/showthread.php?3286-Dark-Slime-and-Black-Slime-what-it-looks-like

8398

SantaMonica
01-29-2022, 12:08 PM
A double setup of RAIN2 waterfall scrubbers; this makes cleaning one easy, while the other continues growing

8400

SantaMonica
03-06-2022, 08:06 PM
RAIN2 being scraped with a credit card, after being lifted up out of the tray:

8417

SantaMonica
03-09-2022, 06:25 PM
This RAIN2 (tm) dome lid has only two GEM5® siliconed in, but two more can be easily added later.

8418

SantaMonica
03-22-2022, 09:08 PM
This RAIN2 waterfall scrubber is tucked down into a sump compartment, but not all the way down to the waterline.

8426

SantaMonica
04-03-2022, 07:04 PM
This RAIN2 really needs to be cleaned/harvested sooner. The slime is great at filtering, but you don't want it letting go down the drain:

http://algaescrubber.net/forums/showthread.php?3740-Slime-is-the-best-filter

8432

SantaMonica
04-20-2022, 07:49 PM
This RAIN2 is turned sideways, with the optional pole mount, and is lowered down so the tray is touching the sump waterline. This gives dead silent operation and (if the water rises up enough when the return pump is turned off) will keep the growth wet and alive during a power outage:

8437

SantaMonica
04-23-2022, 04:14 PM
This RAIN2 waterfall scrubber looks to be slightly below the waterline in the saltwater sump, which is fine because its GEM5 lights are submersible and can go to the bottom of the sump if needed.

8439

SantaMonica
05-09-2022, 06:04 PM
8449

Customer comments of our RAIN2 waterfall algae scrubber


"I purchased the RAIN2 and I really like it" -- struttmaster on ebay

"I have the SM Rain2. It is the single best aquarium filter I’ve ever used on a reef tank. Phosphates and Nitrates are in perfect range, pH is stable, and the tank is thriving. I just wanted to thank you for inventing and producing an outstanding product" -- Steven Aguzzi, Pittsburgh, Pennsylvania, USA

"Actually it is working remarkably well. so well that I had to start dosing nitrates to my tank. Just the other day after 2 weeks of not Checking there was a softball size of Rich green algae. I used to use Clearwater's algae scrubber nothing wrong with it but it does not produce nowhere near the amount of algae that the rain2 does. By far the best algae squabber I believe on the market" -- Mike Kucher, West Frankfort, Illinois, USA

"Brought my nutrients down, with less effort, and my mixed corals are looking great" -- Andy Schwandner, Oregon, USA

"Love the scrubber it does a great job" -- Brandon Debrock, Binghampton, New York, USA

"I followed your advice and the scrubber has a nice growth in it now. Thank you for your help and a great product" -- David Ekers, Milwaukee, Wisconsin, USA

"I have two units, and they grow a massive amount of green algae" -- Charles Willis, Houma, Louisiana, USA

"Decided on Santa-Monica RAIN2. Low light bleed, simple design. I like the waterfall ATS over the bubblers due to both noise and spray (both of which are manageable I grant you). Plus I like the ability to upgrade with additional light bars, which are waterproof" -- QuietMan on the R2R site.

"Working excellent" mickeyv1120 on Ebay

"The scrubber is working great (almost too great)! I started by running the scrubber 24 hours a day with 2 of the LED strips plugged in (1 on each side of the screen). Running the scrubber lowered my nutrients too much so I've reduced down to 12 hours and this still may even be too much" -- Zach Agrums, Winnetka, California, USA.

"It's a great scrubber. I modified it to acclimate to my drain requirements. Used grey threaded pipe and a 1.5 inch bulkhead, but had to grind out the drain plate to accept. This thing pulls a ton of turf algae. Keep up the good work. Thank you" -- dj1256 on ebay

"Everything is going great with my Rain2 on 63 gal tank" -- Charles Clarke, Groton, Connecticut, USA

"I have lots of livestock and my display is algae free. Really love the scrubber" -- Kevin Hernandez

"The scrubber is working quite well, with thick growth along the top inch and down the edges of the screen as well as in the tray. Just waiting for it to fill the screen now... but happy with it so far" -- Dave Hawkins, Kirton Lindsay, England

"My Rain2 has been great" -- Scott Hofmann, Westhampton, New York, USA.

"I love my Rain2, it works exceptionaly" -- Chad Logan, Ottawa, Illinois, USA

"Hecho en buen material. Lo utiliso para controlar los nitritos y excesso de nutrientes" [Made in good material. It is used to control nitrites and excess nutrients] -- Ricardo Sauri on amazon

"I have been using your Rain2 scrubber, with pole mount, on my 135 gallon system and love it" -- Sean Fair, Wayland, Mass, USA.

"I recieved you product Rain2 and im satisfied to the product. Thank you so much" -- Ricardo Algaba, Philippines

"I am loving my Rain2 scrubber that’s on my 93 cube. It is the best investment I’ve made" -- Vince Ninemire, Clinton, Missouri, USA.

"I added the RAIN2 shortly after I cycled my tank, with new dry rock, and for the last year after that, I've never had any significant algae growth on that rock, ever. I attribute this entirely to the RAIN2. I consider scrubbers more important than skimmers" -- Markus Reef Nerd, Australia

"Great build quality. It seems that Santa Monica People care about their products. It came with detailed instructions and pictures. Pretty easy to install and start. I use a Life Guard Quiet One 1200. So far so good" -- HispanicReefer on the MD site.

"I wish I could sell all the algae this thing produces. Id be rich" -- ClownReef on the RC site.

"Just want to take the moment just to express my deep gratitude with you guys there’s no words that I can’t express enough how happy I am with my scrubber, Since installed Almost 2 months ago I’ve been harvesting three times, my nutrients are finally in control and it’s just beautiful to see the kind of algae it’s growing in my scrubber deep green and honestly again guys thank you so much you nailed this product in a perfect way it will be awesome if everybody can have one of them in there Aquariums because Tanks makes so simple now with nutrients in control. Kudos to Santa Monica filtration scrubbers! My 2-light version of the Rain2 has been working phenomenal I think it’s one of the best money spent on my tank, finally I keep control of my nitrates and phosphates, appreciate it and thanks for such an amazing product! In my case it helps a lot specially because I am handicap and only able to use one hand, so with the pole mount it’s a breeze for me to remove it to clean and harvesting the algae. Again excellent product"" -- Simon Romero, Florida, USA.

"I have 20+ large cichlids being fed heavily in 140 gallon tank. Harvesting a full load [from the RAIN2] every 2 weeks and nitrates are at 10ppm with no water changes in 18 months!" --Chris Hamond, Edmonton, Canada

"A+" -- chaoarturo_pty on ebay

"Really prompt service - delivered to UK" -- teldarsiesta on ebay

"So far it's great; well built, and has very little light leakage" -- Michael Rasmussen, Michigan, USA

"I'm currently running one Rain2 scrubber with 4 gem5 lights on a 50 gallon display tank with 15 gallon sump where scrubber is installed. Definitely getting great growth on algae scrubber and harvesting one side of screen every 5/7 days for bright green to light brown mix of algae. Using filter sock and protein skimmer for mechanical filtration. Adding the algae scrubber has decreased phosphates and nitrates significantly. Tank does not have any significant algae growth on rocks and only requires glass cleaning for light algal coating every 5 to 6 days. Running scrubber on 18 hours on/6 hours off cycle. Tank is mixed reef with LPS corals (6 pieces/not large), one Australian spider sponge, and 3 small anemones. Stocked with an average of 20/30 small Clownfish (1/2 to 3/4 inch) as my grow out tank for Clownfish breeding purposes. Both Rain scrubbers are doing great! Lots of algae growing steadily and being harvested every 12 to 14 days. Nitrates almost non existent and phosphates dropping into low range finally" -- Ron Silva, Tustin, California, USA

"I love my Rain2 Santa Monica filtrations algae scrubber!" -- Matyas Castro

"my test kit now reads nitrates as undetectable. I removed my filter socks completely about 2-3 days ago. I am still running my skimmer and am gradually setting it to run more dry" -- Mulletboy from Australia, on the AlgaeScrubber.Net site.

"Thick plastic housing /tray, Proprietary waterproof LEDs. Algae, nature's filter, whether macroalgae reactor or rain type algae scrubber. After watching many videos over the last couple years, I decided to try Santa Monica. The gentlemen in all his videos shows a real concern for his product. I purchased a rain2 from Marine Depot and a Hog3 from another company to do my own comparison on my 150 gallon tank. The rain is heavy duty, compact unit with real nice LEDs. I connected a 90 [elbow] on the end of the supplied pvc which I attached the 3/4 inch nipple, also supplied. I made a long rectangular notch from the top of the 2 inch pvc to where the 90 elbow/ barb would stick out. Therefore I can easily slide the whole unit off the 2 inch pedestal. I connected my Eheim 1000 pump with a small piece of tubing so it is suspended freely. Plugged everything in and everything is functioning. Very detailed instructions for developing the algae. This is the most compact unit available. No worries if leak develops as the tray sits about 1/2 inch above the sump surface water. Very quiet. Nicely engineered and well thought through. The screen is easy to remove. Would recommend." -- Scott from MD site

"Great product thank you for offering it" -- Brad Calcagno, Port Charlotte, Florida, USA

"Everything is working great and produces a lot of algea. I clean it every week as instructed" -- Alan Leung, Pomona, California, USA

"I love the quality of the contruction and how easy it is to remove the screen" -- Bruno Santos, Brazil

"Product seems to work great, growth after 7 days with lights 24 hrs" -- Darren Facey, UK

"Yes, it is working. In fact it is working really well. My 80 gallon reef tank was looking a lot jaded and was going downhill rapidly. Then I put on the Rain2 and within a week I was able to see the difference and now my tank looks fantastic. I would recommend this algae scrubber to everyone. Best buy ever. Next week I will be taking my skimmer off as nothing matches the scrubber" -- John Ratcliffe, UK

"This product is well built and I am growing some serious algae! Nitrates are down to 5 from 20 and I think they will continue to go lower" -- Thomas Bunio, Hayward, California, USA

"I have both a RAIN2 and a chaeto reactor in my Red Sea XL 425 sump, and the RAIN is a workhorse. I harvest about every two weeks, and it's super quick and easy" -- Cindy Nicholls, Canada

"I run a [RAIN2] algae scrubber and my display is algae free. The scrubber provides the concentrated light source that allows the algae to out compete for nutrients (thats why I want it for in the first place). My nitrates and phos are ultra low and I may need to reduce the light cycle to feed my sps [coral]. I spent the extra money and bought one from Santa Monica, even though Im an avid DIYer because I wanted it to be robust. The LED light source on the Rain2 is custom made, you can see the 3d printer was hard at work, Combined with the support I received I think its well spent. I didnt want the traditional water fall type since in my opinion will have allot of light bleed causing the sump to have algae. With the Rain2 its pretty cool to keep all the red light inside. My sump is pretty clean as well." -- TheMerchant on the SCR site.

"Have had one of these Rain2 scrubbers with 4 lights on my tank for about 3 weeks now and my tank is looking 100% better. Fish look fantastic and my corals look better than I have ever seen them. Fantastic piece of kit. Would recommend it to everyone." -- Charles R., UK

"It's working flawlessly with just one light... almost the whole screen was covered with very green algae" -- Frank Nagy, New York City, USA

"It is slowly starting to fill in. I was only running 1 light, I am now running 3" -- Pelphrey on the RC site

"It works very well, and super service after the sale!" -- Patrick Ray, Switzerland

"I love it! The RAIN2 saved my tank, when my skimmer died. I have to say honestly, from what I've seen so far the Rain2 works amazingly well and it was a pleasure to go through the process of documenting getting it installed and running. I'm 100% sure it will have a lasting positive impact on the proper maintenance of my water quality" -- Reefgrrl on youtube

"I love it. Perfect size for my sump. Other scrubbers just takes up too much room and maintenance and cleaning would be a huge pain; And it works so well at reducing nutrients that I cut back from 4 of the lights to 2. It's on my Red Sea Reefer 525XL. Keeps my Nitrate @ .5-1 ppm and Phos at .02-.03 Absolutely love my Santa Monica Rain2" -- Phillip Tennel on youtube

"You won't be disappointed the quality is top notch. Once you get it set up and producing you might even think you didn't pay enough. I'm actually so impressed with the results I am buying another one for my 120" IronVulture on the R2R site

"Very happy with it. Nice build quality" -- Adam G on the r2r site

"very slick. I will say this, so far, it's been one of the easiest things to clean on my tank. And very silent with the top in place" -- waboss on the r2r site

"My RAIN2 is really taking off with growth, even with just one light plugged in, and even though I use zeovit. I'm plugging in more lights now" -- Kurt Clausen, Chicago, Illinois, USA

SantaMonica
05-13-2022, 07:16 PM
RAIN2 one-handed access to screen and bottom tray video

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https://youtu.be/LbryHi1eUuE

SantaMonica
05-18-2022, 07:29 PM
The RAIN (tm) patented tray (10,655,095) and patent pending dome (16848779) allow for easy viewing and cleaning of the bottom tray without turning off water or lights.

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SantaMonica
11-12-2022, 05:12 PM
No the screen is not pink; it's just the deep red 660nm GEM5 lights on the inside of the RAIN2 dome.

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SantaMonica
12-23-2022, 02:01 PM
Here are some fun holiday colors, and some descriptions of waterfall growth on a RAIN2

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SantaMonica
03-18-2023, 07:39 PM
Don't buy fish food. Don't replace filters. Instead, use your filter to feed your fish. MaramotReef on IG shows how it's done:

o The living, green growth can be put right into a fish feeder.

o The black tray is level with the sump waterline; this eliminates all sound when the dome lid in put back on. The tray can be lowered even further so the screen is below the waterline, so that the water does not fall off the screen and instead flows smoothly downwards.

o The screen can be slid forward (after removing the red cap) and out of the sump with the water still flowing, and without disassembling anything.

o Growth can be seen easily, and hand-removed easily, without disassembling anything.

o The black tray can be easily lifted up off the pole mount and taken to a sink for brushing.

o If power goes out for a few days, the black tray can be lifted up and set down in the water, to keep the algae alive for over a week.

Happy Scrubbing :)

https://youtu.be/1z5YobASY8g

https://www.facebook.com/SantaMonicaFil/videos/1686364505115625

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SantaMonica
03-26-2023, 06:27 PM
Here is an almost perfect growth ring, allowing full flow to the thicker inner parts of the screen:

http://algaescrubber.net/forums/showthread.php?3713-Growth-Rings

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SantaMonica
07-07-2023, 06:11 PM
This RAIN2 (tm) waterfall scrubber is sitting on a pole mount in a saltwater sump. If you wanted to run the tank as a natural reef with lots of food particles in the water for the corals to eat, you could remove the roll filter, or the skimmer, or both.

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#algaereactor
#algaescrubber
#ats
#ballingmethod
#biopellets
#bulkreefsupply
#canisterfilter
#carbondosing
#chaeto
#chaetomorpha
#chaetoreactor
#coralvue
#fleecefilter
#fluconazole
#freshwateraquarium
#gfo
#nitrate
#phosphate
#pelletreactor
#plantedtank
#premiumaquatics
#proteinskimmer
#reef2reef
#reeftank
#refugium
#rollfilter
#saltwatertank
#tritonmethod
#turfscrubber
#zeovit

SantaMonica
08-15-2023, 06:19 PM
This RAIN2 has not quite filled in the screen yet but is growing a lot on the tray below. This is because when the screen is not cleaned soon enough, some growth can fall down to the tray, which has a rough texture to hold on to it. But the preferred way is to clean/harvest before it let's go.

Bubble upflow models (like our SURF, etc) do not let go of the growth because the growth is always under water.

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SantaMonica
09-13-2023, 10:58 AM
Here is one side of a RAIN2 screen, easily pulled up and out of the tray when you want to take it all to your sink for cleaning/brushing. This way you can brush out the pipe slot too.

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SantaMonica
09-15-2023, 02:45 PM
Here is the other side of the same screen on the previous post; guess which side had more light.

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SantaMonica
09-24-2023, 03:26 PM
You might think this is a big screen from a RAIN4 (which is now available again) but it's just a RAIN2. Also it's an older photo with the previous wide-style hanging tabs, whereas the current ones are a narrow-style unbreakable tab.

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SantaMonica
10-10-2023, 02:21 PM
This brand new Green Grabber® screen is an "after market" alternative to replace the stock flat RAIN2 screen. This new screen has rails hand-cemented onto the flat screen, giving much more area for algae attachment in a small space. Slime has a difficult time holding on to waterfall screens because there is no water supporting it like bubble upflow models have, so the extra space and angled "hiding" areas allow the slime to hold on a few more days before detaching. Similarly, heavy thick growth will let go sooner because the thick growth blocks light and flow, causing the roots to die sooner and detach; the extra attachment areas on this screen will hold on to the dead roots a few days longer. The rails can be on one or two sides of the screen; one-sided is good for comparing your growth results on each side. It is available here:

https://www.santa-monica.cc/product.asp?itemid=82

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https://youtu.be/O21z3qS3MS0

https://www.facebook.com/SantaMonicaFil/videos/164362476733198/

SantaMonica
11-17-2023, 04:34 PM
Updated RAIN instruction now available:

PDF:
https://algaescrubber.net/RAIN-Instructions.pdf
WORD:
https://algaescrubber.net/RAIN-Instructions.doc

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SantaMonica
01-23-2024, 04:59 PM
Updated RAIN2 and RAIN4 instructions in Italian

http://www.algaescrubber.net/RAIN-Instructions-italian.pdf
http://www.algaescrubber.net/RAIN-Instructions-italian.doc

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SantaMonica
02-04-2024, 04:24 PM
The RAIN2 with two GEM5 lights is enough light for most situations, and allows you to silicone in two more lights later if needed.

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SantaMonica
02-08-2024, 12:23 PM
This is a rare situation where a pole mount is not used, but a regular shelf on the top of the sump is not either. Instead this RAIN2 is on a shelf halfway down the sump.

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SantaMonica
02-13-2024, 01:37 PM
Here is a nicely made DIY pole mount for a RAIN2, and a drain bulkhead added too. Note the microwave ready to cook algae.

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SantaMonica
03-06-2024, 07:46 AM
Spanish RAIN instructions now posted:

https://algaescrubber.net/RAIN-Instructions-spanish.pdf

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SantaMonica
04-12-2024, 12:43 PM
This is a pretty good example of the textured RAIN2 tray holding growth that has dropped off the screen. For best filtering, the screen should be cleaned sooner, but if not the tray will help.

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SantaMonica
04-17-2024, 02:26 PM
This RAIN2 with two GEM5 lights has more PAR to grow algae than other scrubbers that use big Chinese lights. This is because the GEM lights are made of an expensive material that handles the heat and is submersible too. It's not metal.

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