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Thread: SURF2 and SURF2

  1. #31

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    This looks really interesting!

    I believe the only weak spot of this design is the amount of air needed... Why so much air? Does the scrubber need that much air (CO2) or is it needed just to achieve a sufficient flow of water into the box? Couldnt a higher waterflow be achieved with small tubes helping to lift the water into the container, and a lower airflow?

  2. #32
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    Photosynthesis is proportional to the algae going through the air/water interface. Since the box can fill completely with growth, it needs that much air for bubbles to reach all the growth. And when empty, it needs that much air so bubbles can reach the sides and bottom of the box.

    You could add airlift tubes below it; they would be fragile and they would take up space. But so far it's growing great without them.

  3. #33

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    I suppose you already have experimented with more holes for air input, ie dividing the same amount of air flowing into multiple holes in the bottom?
    Tank Info: 1000 liter FOWLR/Reef (some corals), DIY glass "High-Tech" sump with ATO reservoir, 550W DIY LED, 5x Tunze Stream 610x, Laguna 6000 l/h return pump, DIY Phosban reactor, DIY Almost floating UAS Algae scrubber, DIY Temp Controller, Avast Mutiny II Ozone reactor. 216 liter Reef Cube, glass sump with ATO reservoir, Ecotech Radion LED, DIY Phosban reactor, DIY Temp Controller.

  4. #34
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    Well a 2-output pump is about as big as you can get from aquarium places, so that's what it is set up for. When packed full, bubbles are fighting to get to the top, so dividing the bubbles even more would probably require even more air.

  5. #35

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    Ok, just trying to convince myself that I need/want/can afford two of these things... ;-)
    Tank Info: 1000 liter FOWLR/Reef (some corals), DIY glass "High-Tech" sump with ATO reservoir, 550W DIY LED, 5x Tunze Stream 610x, Laguna 6000 l/h return pump, DIY Phosban reactor, DIY Almost floating UAS Algae scrubber, DIY Temp Controller, Avast Mutiny II Ozone reactor. 216 liter Reef Cube, glass sump with ATO reservoir, Ecotech Radion LED, DIY Phosban reactor, DIY Temp Controller.

  6. #36
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    Well if it helps, someone else just got two to replace their SM100, because they said they slacked in cleaning because it was so much work.

    Mine was the same; I had to pre-plan the day to clean one SM100 of the two I ran, and I always put it off. Now that I replaced those two with four SURF2's, I don't have to plan anything, and it takes seconds.

  7. #37
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    Have decided to make non-floating LED lids. The air pocket that was needed to float the lid took up too much room inside the growth compartment; this room is needed when the compartment gets packed with growth (mostly in SW).

    You can still, however, drop the lid down into the water when you are harvesting.

  8. #38

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    Will one tetra whisper 300 enough to feed air for the surf2? or should i go with two whisper 150s? I'm looking for something silent and which is available in my country.

  9. #39
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    A 300 is plenty. Silent too

  10. #40
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    4 more harvests/cleanings...
    http://youtu.be/yXRhc07mXJo

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