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Thread: Fresh water algae scrubber/filtration

  1. #61

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    Both my tanks. The turf algae from the 6" ball, has been slowly taking root on the plastic rock work.
    The top tank has minimal lighting. The green in the per right hand corner is turf algae. It is attached to the floss in the HOB. Under a well focused 2700k Cfl.

  2. #62
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    The wood in the top one gives me an idea for a "stump tank". I wonder if that's been done.

  3. #63

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    The last 10 ppm nitrate.

    It gets close, it seems like something is missing for the algae to burn up the last bit of nitrate.
    I add a 400 gph powered/ pump finally. I should have long ago. It has really improved the proformance. Now it's all green, except just along the edge. It also allowed me to raise the screen 5 inches, out of the sums high water line.
    The Gem 5 lights are working great.

    I have isolated my 30 gallon cube, hatchery, and have been trying only algae scrubber, as bio. I

  4. #64
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    It's just a matter of scrubber strength vs. food input.

  5. #65

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    green screen vs red and slime

    Nitrates are down to 15 ppm no3, a week from my last 33% water change with 12ppm no3. The dark green algae is still growing. I am feeding twice as much as 6 months ago. As the, Fry have grown out.
    I think it might have been the darker red scum that would smother put the screen.
    So time for a another water change. The nitrates were hovering around 30ppm 2 weeks ago. Before I added the pump. To recirculate sump water through the scrubber.
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  6. #66

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    Have not done much with new sump, but the turf algea grows well under led lighting. I mow it about once a week.
    The gem lights are working good, and grow a different type of algea fine green. The stuff in the tank is very strong.

  7. #67
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    Where are the gem lights, and which tank is the pic?

  8. #68

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    The tank that had the gem lights, has no scrubber at this time. I am reconfiguring the sump.

  9. #69

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    The top tank, stump. Is on full algea scrubber for all bio filtration. So far it has held nitrates, at 15 ppm, unchanged for a month., my tap water is 10ppm. Nitrates were 20 plus at the start.
    It uses a built in scrubber chamber, on a custom built, pourus but slick algea screen. The light is a 15 led 6"x14" array evenly spaced.
    All the water must pass thru the scrubber, before an internal sump pump pushes the water and loose algea into an above the tank sump, for mechanical only filtration.

    This tank is my all male psudotrouphus elongatus, cichlid display. They fight, and are highly stressed, frayed fins, and battered. So it is also a test of disease, and health benefits of a algea scrubber.
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  10. #70

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    Recent growth

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    Fresh water up flow scrubber.

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