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Any rough gravel will do, except aragonite which will slowly dissolve.

They are all counted the same, 3w

The ends of mirror acrylic are not coated.

This might help:

4332

The two air bubble inlets suck water into them.

You harvest by just combing the ribbons with your fingers, or a salad fork.

The mirror on the acrylic will not last too long; it's just a coating. Plus light will escape everywhere.

Seems about 2 cubes, and would need 36 watts = 12 stars.

Welcome.

It's a horizontal river. 90 square inches.

Pods eat algae, so with less caulerpa there is less food for pods.

Was having trouble building it, and I have enough HOG1's for now anyway.

The SURF2 is 4 X 6 X 2, so the ribbons are 2" tall

Welcome,

Yes ammonia is absorbed, primarily. It won't alter your bio filter because the ammonia hits the bio filter before the ammonia ever gets to the scrubber. Also, scrubbers add carbon...

The link opens if you have Google Sketchup.

I'm just not good at pictures.

Unit is almost silent with the LED lid on.

Number of days with this unit is unknown, because the air tubing got...

Well, that is usually too much light in the middle. Add iron, increase flow, or put a diffuser on the light.

If you cannot do these, then move the light back 10 cm. Last thing to try is 2 less...

Rotten banana is brown. That is weak light.

Bright yellow like banana is from strong light. Dull yellow like beer is from weak light.

And the rest...

4309

Before first SW harvest:
4310

First SW harvest:
4311

I made 2 paid requests and both times they did nothing.

Welcome.



Unfortunatly, this does not remove any phosphate that is bound up inside the rock; it will only remove dead periphyton, but at least that's something.



You can run them...

Clean more often if you see yellow.

Partial insides

4303

For a waterfall, probably 5 cm.

850ma seems high for those LEDs... they might not last long. Better to run them less, so 600ma is good.

That driver will work with 10 total of those LEDs, 5 on each side. It might also work with 8...

Welcome.

Baffles would be just for bubble removal. You might want to wait for the rest of the posting on the floating surface scrubber so you can consider making it instead. It will have no...

Yay UK mail!

Additional pics will show how it works.

Maybe 4 on each side. Place them so they don't shine on the same spot from both sides.

They are good, try 6

660nm

Depending on how much you drive them, you probably should have 4 to 6 LEDs.

5 HOG1x magnet version
11 HOG1 magnet version
2 HOG1 suction cup version
11 HOG.5 magnet version
4 HOG.5 suction cup version
4 HOG.5 kits
13 Fusion 700 air pumps
Coming soon: Pre-orders for...

Bottom view

4302

Such video skills :)

The goal of a scrubber is to grow as much as possible; this absorbs the most nutrients.

Project box

4301

Yes

Yes my new reef pool is running on 3 of them

http://video.ted.com/talk/podcast/2004/None/SheilaPatek_2004.mp4

Foam

4299

It is just burning in the middle. Add some iron, and decrease hours. Or add a diffuser, or back the light up a few inches.

Local rock is probably better because it did not travel as far.

IF LR had a lot of life in it, when the life dies is will put some nitrate and phosphate into the water. But more phosphate can be stored in LR if it was in high-phosphate water; if this was the...

http://www.freepatentsonline.com/8440073.pdf

Lights

4294

3 months.

Forgot... also is unaffected by water level changes from evap, like the HOG can be if being used as a bubble remover at the surface.

Also forgot... has built-in bubble remover.

And, is almost...

Middle is too strong. Needs more water flow, and wider reflectors. Also could do less hours light, and less days before cleaning.

Well at least the LEDs are not in series or they all would have gone out.

No waterfall
No shining through glass
Drop-in installation
No turning anything off to harvest
No removing anything to harvest
Lots of 3D growth
Easiest to build yet

4 HOG1x magnet version
8 HOG1 magnet version
2 HOG1 suction cup version
13 HOG.5 magnet version
4 HOG.5 suction cup version
4 HOG.5 kits
13 Fusion 700 air pumps

Purchase at:...

No, iron will not produce algae.

I love pipefish :)