I have been fighting red cyano
and brown?diatoms? On sand. Red is on rocks brown on sand. Tanks about 10 to twelve weeks old. For two weeks I did heavy water changes. No different. For last week and a half I have added algeacide. Do I stirr the sand? Or let it sit? I've been storing and moving it when I clean. Is this the correct?
Today I took out the carbon bag from my filter thinking this may be absorbing the algeacide? Could this be? Any help would be great thanks ahead of time.......