Green Algae, won't go away !
I have a 40g freshwater taken with Angels, Molly's and 2 pleco's.
I had a HUGE (whole tank green) algae bloom this summer took the water to the local pet store and they said my phosphates and nitrates were off the chart. Great ok so I have spent the past 6 weeks fixing my water chemistry. My Phosphate and Nitrates now read 0 on the dropper test kits, I do 20% water changes twice a week. The fish seem quite happy but this green algae won't go away! I have to scrub the glass on my tank almost daily (well not really scrub the algae just falls right off). I was told once the phosphate and nitrates were gone without food the algae would stop growing but that doesn't seem to be happening. What else can I do to fix this short of nuking the whole tank which I don't want to do?