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Thread: Dwell Time, and Plastic Canvas vs. Green Grabber

  1. #11

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    Quote Originally Posted by Floyd R Turbo View Post
    I think the true test of this idea would be to put a scrubber on a high nutrient tank (any scrubber) and let it grow in a restricted volume environment. In a way, I had planned on doing something like this with my grand experiment plan, which will probably never happen because I don't have the time. But anyone could take their scrubber and make this happen - except those that feed their waterfall scrubber directly from their overflow (must be a pump-fed scrubber)
    Put the scrubber in a restricted environment, then what? What would the test be?

  2. #12
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    See how much algae grows, and measure the nutrient level of the water to see how much uptake there was. Or send the algae off to a lab to have it tested.

  3. #13
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    I ran my waterfall L2 30 min on 30 min off continuous and the growth was not as strongly attached, actually to the point where when I cleaned it, it came completely off leaving an almost bare screen that essentially had to partially restart, but it recovered very well under 12 on/12 off and is growing much more solid now

    The only reason to do a split photoperiod is when you start from a bare screen and have zero growth after a week or so. At least that has been my experience and that generally applies only to waterfall scrubbers. But if I were to TRY to translate that to UAS use, I would say that you want to back off on the light exposure to 4 on 4 off continuous instead of 4 on / 1 off.

    And +1 on pics, might help to start a thread on your specific setup and scrubber so that it doesn't get intermingled into this particular thread topic

  4. #14

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    Your right, I should have started a different topic, my apologies. I initially just wanted to say you might be on to something with your concern about volume and what I am attempting to do with mine to address those issues, not with a troubleshooting intent.

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