Thank you both.
I am not injecting CO2 into the big tank. Half of the lamps are white and half are blue. The white ones are on for only ~6 hours per day and two of the three glass tops have black screening keeping out ~40% of the light. And of course the water sprite ( not H. difformis as I mistakening thought) is blocking and absorbing a bunch of light although I hope to eventually open up that blockage and maybe evne eliminate it altogether once my rooted plant mass gets higher. Most of the algae I am getting now is easily scraped from the glass.
Last edited by tomfromstlouis; 01-21-2013 at 12:12 AM.
Reason: correct species