+ Reply to Thread
Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: RAIN2 Advise

  1. #1

    Join Date
    Aug 2018
    Location
    USA, Florida
    Posts
    10

    RAIN2 Advise

    Hey gang.

    I have upgraded to a 92 gallon corner saltwater tank 1 month ago. I kept the live rock from my old setup (4 years old), and put in 60 pounds of new live sand. Currently, residents are 3 anthias, 1 flame angel, 1 lawnmower blenny, and 1 longnose hawkfish.

    Im trying to run it with only a RAIN2 in the sump, which I purchased in March no other mechanical filtration. Currently running 2 of the LEDs, 20 hours a day. I feed 1 cube of frozen food and about 1 gram of pellets daily. I am cleaning the screen weekly with a plastic scrapper, getting about 5 grams of growth after a week, pic attached.

    Click image for larger version

Name:	Compressed 10.jpg
Views:	83
Size:	95.2 KB
ID:	7535

    I have never really gotten the algae growth I expected in the RAIN2 and am starting to see hair in the main display. A lot of the algae is slimy red/orange as opposed to hairy/stringy green algae. Any ideas/advise on getting the system tuned up?

    Thanks in advance!
    Last edited by Dutch Snoots; 09-01-2018 at 10:09 AM. Reason: Updated Photo

  2. #2
    Super Moderator
    Join Date
    Oct 2008
    Location
    Santa Monica, CA, USA
    Posts
    9,710
    Welcome.

    Phosphate might be coming out of the rock, and going into the sand. Moving the rock would have killed off a lot of the periphyton on them, and this will be decaying now into the water. But since the rock is new it will not have much phosphate in it, and will absorb it until a balance is found.

    Looks like the 2 lights might both be at the bottom; you can instead have one at at the bottom and on the other side put one at the top.

    Reduce to 18 hours a day.

    Use a toothbrush to get the orange off the screen; it will block GHA from attaching.

    Feed double if you want. Since you don't have tangs, you could feed lots of pods for the anthias.

    Let the darker growth from the top of the screen grow down onto and over the orange lower part; Let it go longer than a week so it can do this.

    See how it looks in two weeks.

  3. #3

    Join Date
    Aug 2018
    Location
    USA, Florida
    Posts
    10
    Thanks, the feedback is very much appriciated. I’ve made the changes and will share the results soon.

  4. #4

    Join Date
    Aug 2018
    Location
    USA, Florida
    Posts
    10
    Hello again!

    Still lots of red/orange growth on the screen...

    Click image for larger version

Name:	18.09.02 - Scrubbed - Post.jpg
Views:	56
Size:	87.8 KB
ID:	7543
    Scrubbed with brush

    Click image for larger version

Name:	18.09.09 - Growth - Post.jpg
Views:	56
Size:	84.5 KB
ID:	7544
    Growth after 1 week

    Click image for larger version

Name:	18.09.14 - Growth - Post.jpg
Views:	63
Size:	85.3 KB
ID:	7545
    Growth after 2 weeks

    Algae growth in the main display is starting to get heavy. It is growing on the glass, rocks, and sand. Lawnmower Blenny looks SO FAT that I'm afraid he's going to pop! Water is testing fine - no nitrates or phosphates.

    I am starting to suspect that the main display LEDs are part of the problem. I got them used from a friend - they have no identification and I have no idea how old they are or what spectrum they have. I'm currently looking into replacements...

    Looking forward to the feedback. Thanks...

  5. #5
    Super Moderator
    Join Date
    Oct 2008
    Location
    Santa Monica, CA, USA
    Posts
    9,710
    No the display lights are not related. But if nutrients are testing zero, the nuisance growth on the glass should be green and only need cleaning every 2 weeks. And phosphate should be coming out of the rocks, causing more GHA on the rocks. And if you have a sand sifter, the sand should be clean. Pics would help.

    Which lights are on? Try one on the top, and on the other side have one on the bottom. Only 2 lights, 18 hours.

    And try dosing some iron.

  6. #6

    Join Date
    Aug 2018
    Location
    USA, Florida
    Posts
    10
    How much iron should be present/measured? I've never tested/dosed this before...

    Click image for larger version

Name:	IMG_7197 (3).jpg
Views:	53
Size:	70.1 KB
ID:	7546
    Here is the light configuration for the RAIN2. Currently running 18 hours on.

    Will post photos of the algae on the glass/rock/sand this evening... Thanks.

  7. #7
    Super Moderator
    Join Date
    Oct 2008
    Location
    Santa Monica, CA, USA
    Posts
    9,710
    Ok try just 1 light, on the top.

  8. #8
    Super Moderator
    Join Date
    Oct 2008
    Location
    Santa Monica, CA, USA
    Posts
    9,710
    For iron, Kent's Iron+Manganese is good... just follow the label. Or feed lots of nori.

  9. #9

    Join Date
    Aug 2018
    Location
    USA, Florida
    Posts
    10
    Photos from the tank:

    Click image for larger version

Name:	Algae on Glass.jpg
Views:	54
Size:	83.7 KB
ID:	7547
    Algae on Glass - I scraped part of it off to install the pump

    Click image for larger version

Name:	Algae on rocks.jpg
Views:	50
Size:	69.1 KB
ID:	7548
    Algae on Rocks

    Click image for larger version

Name:	Algae on Sand.jpg
Views:	51
Size:	68.9 KB
ID:	7549
    Algae on Sand

  10. #10
    Super Moderator
    Join Date
    Oct 2008
    Location
    Santa Monica, CA, USA
    Posts
    9,710
    OK just do the 1 light at the top for now.

+ Reply to Thread
Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts