Hi. I have a 55 gallon tank. I have a brown algea problem. It is taking over my tank. I have 3 angelfish, 6 cory cats, and 2 mystery snails. My ph is 7. Ammonia is 0. It is planted with fake amazon swords and river rock. I didnt have this problem for the last year now it appeared. Any help? Someone told me to try 4 to 5 ottos and maybe a plec. Another suggestion was a live plant or two. I dont know the other testing stuff. I was told my nitrate was too high. What do I do? Please help me.
