sansouci01
Aquarium Advice FINatic
I've been having an algae problem lately in my 20 gallon tank. It's powdery green stuff on the rocks. I do a 3 day lights out and it disappears for about a week then returns. I practically starve my fish so not an over feeding problem. I do a 5 gallon a week water change. Should I do a larger water change after a 3 days lights out period and maybe a couple of more during the week or is that too much. My fish and corals are all healthy looking. It's just that the tank is starting to look pretty bad.. I'm running 4 t5's that are brand new. They are on about 8 hours a day. Blue plus and purple plus bulbs