Uneven.
Uneven.
another question - why did algae get burned by 23w bulb, 2inch away?
is 23w too strong?
Thanks alot appreciate your help
Algae retains a "history" of it's growth parameters. It is susceptible to change, like lots of other organisms. Slow changes are best.
Too much focus on one spot.
Any suggestions? - maybe move 3 inch back or change
smaller wattage bulb.
Use a big round reflector.
Try to point the CFL to the middle of the screen.
what about water flow?
More is always better, but I think the tight focus of your light is more of the problem.
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