Originally Posted by sansouci01
This algae in my 20 tank is driving me crazy. It's green stuff on the rocks. It comes right off when you use a brush. I do a 3 day lights out period and it all disappears. Lights back on and 2 days later it starts again. I'm running 4-t5 ATI bulbs. All brand new. 3 blue plus and 1 purple plus. Lights are on about 8 hours a day. I just about starve me fish. Fish and corals are all doing fine though. I was thinking about doing a water change every day and see if that helps. Any suggestions?????
theres a nutrient issue, the algae is feeding off something.