tanker
Josh Holloway--Be mine!!!
They were on from 6am to 9pm. The tank is next to a wall of windows where the sun comes in for most of the day. I can't have less watts, it won't reach the plants. I added 72watts of light, but only after I had the issue, then a day later I realized it shouldn't be on until this stuff clears.
6am to 9pm?!?!?! 15hours??? There is your problem. Cut it to about 8hours.
With 15hours of light, algae will grow in any water.