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Thread: My journey with the Rain2 Algae Scrubber and my 80G Tank

  1. #71

    Join Date
    Jun 2018
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    Australia
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    Rain2 Harvest today, was a pretty big one, 80grams squeezed weight







    Who ordered the vegan meal? There is always a home grown, 100% organic, vegan friendly option at my house


  2. #72

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    Jan 2011
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    Leeds, UK
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    Nice growth. I noticed in your video that you still use Rowaphos in your filter sock, doesn't that affect your growth?

    Mark

  3. #73

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    Quote Originally Posted by Marksfish View Post
    Nice growth. I noticed in your video that you still use Rowaphos in your filter sock, doesn't that affect your growth?

    Mark
    I have not heard of anyone saying rowaphos affects coral growth? High phosphate on the other hand can....

    But don't use rowaphos anymore, too much work replacing it and cleaning a filter sock... I instead use this

    https://youtu.be/x5fk6pQsMLA

  4. #74

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    It wasn't coral growth I was querying, but your algae growth. Surely you would get more of a yield if all the phosphate was available for the algae, or is it just that you would really need 2 of the scrubbers on your system to keep it low enough? I thought the idea of scrubbing was to avoid using "extras" to keep the water good?

  5. #75

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    Quote Originally Posted by Marksfish View Post
    It wasn't coral growth I was querying, but your algae growth. Surely you would get more of a yield if all the phosphate was available for the algae, or is it just that you would really need 2 of the scrubbers on your system to keep it low enough? I thought the idea of scrubbing was to avoid using "extras" to keep the water good?
    Oh right, I see what you mean

    The only thing that will limit algae growth is nutrient availability dropping below detectable levels...

    In my case I used the rowaphos to correct an imbalance between my nitrate and phosphate, at the time, my nitrates were very low 0-2ppm and my phosphates were comparatively high at up around 0.1ppm.

    The rain2 is sufficient to keep my nitrates down, phosphates creep up a bit in my case without the help of the resin that I now run, or like I used to, a bit of rowaphos. I may not be typical however as I feed copious amounts of coral foods like reef roids, the aqua forest coral food range, coral essentials black label, reef chilli, and others... most of them at 1-2 times the recommended dosage and I use multiple products simultaneously...


    I now keep my nitrates around 4-5ppm and my phosphate around 0.06ppm which is a better ratio and more balanced. I harvest the rain2 every ~10 days, and I regenerate my phosphate resin once every 4-6 months

  6. #76

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    Jan 2011
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    Leeds, UK
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    That makes sense, thanks for the explanation.

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