My 20 gallon Nano has been up and running for about 2 months now and I can't seem to rid myself of the brown uglies. My water is testing good with Red Sea test kits. Corals are doing great. Just after a full day with the lights on, I have the hairy brown algae lingering. I know some is ok, but what can I do to clear this problem up or just let it run its course. Orbit LED lights. Turned intensity down to 55 percent thinking lighting was to much.
