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

  1. #71

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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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    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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    That makes sense, thanks for the explanation.

  7. #77

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    Hey All!

    Time for another update of my tank! This is to cover Feburary and March 2020.

    I have tried not to make too many changes over this period, and everything continues to do great! SPS is growing super well! No significant losses and a few additions!

    This last 2 months I have
    - Calcium reactor - The Pacific Sun AC-Nano. Is now set to 1000ml per hour flow rate, despite this, I still dose 1.5L of Kalk per day and ~30ml of 2part per day. So the transition continues, it will prbably need to get to about 1500ml per hour before its accounting for 100% of my dosing.
    - I used a fine scooper rack thing to sift and clean the sandbed in the back right corner of the tank, it was filthy and I pulled out heaps of snail shells and bits of gunk. I only did a small area as I dont want to disrupt too much at once.
    - Replacing the screen on my Rain2 ATS which set the tanks nutrient levels back a bit higher while the new screen matures, I am still battling this and the new screen is mostly growing very dark slime algae at still, I am cleaning it twice a week. I am temporarily carbon dosing the Reef Anabolics NRS product to try and bring the levels down a bit. But if that hasn't worked by the end of March I will need to do something a bit more aggressive.


    My parameters have moved a bit with higher nutrients following the swap of the algae turf scrubber screen averaging:

    Alkalinity 8.0dkh
    Calcium 405 ppm
    Nitrate 10.0 ppm/L
    Phosphate 0.1 ppm
    Magnesium 1330 ppm

    Full Tank shot for March 2020









  8. #78
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    Very nice pics.

    One trick with a new screen is to cut the old screen into strips and hang the strips on the new screen

  9. #79

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    Looking really good

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