I am now having my second algae bloom in 2 months, I got rid of the first one by covering the tank for 48 hours, worked like a charm. I have now covered the tank again. My question is, why am I getting this recurrently? I have a ten gallon, I feed once a day, I am getting better about turning out the lights at night. I did just add three fish, could that be the problem? I had 2 sunburst platys and an 8 inch long pl@co. I took the pl@co to the lfs cause he was obviously too big for my tank. I brought home a SAE and 2 dwarf puffers. Let me know what I am doing wrong.