I used to have the lights go on at 6:30am and off at 10pm when I had ~2wpg and DIY CO2
injection. Now I'm up to over 4wpg (65w CF
on 20gallon), and have the lights on from 6:30am to ~7-8pm. Is this too much light? What is the proper amount of high light per day for the plants, and at what point does the extra light just grow algae?
I got a nice digital timer last night, but must have screwed up since it didn't work properly. I like the idea of the light going off around noon for a couple of hours, since I'll be at work and it will give the fish a nice siesta.