New here, but a stalker for months. I just re-set up a 65 g. tank. All is/ was going well, Africans. So ph is 8.0,ammonia is .25, nitrites 0 and nitrates 10. It has done a great live cycle, lots of water changes. I should have read first. Question is if anyone has a thought. I had a high algae bloom in the past day. I don't like adding chemicals to the tank so what may I have done wrong? No direct sunlight btw. Thanks for any input and apologies for spelling and grammar Midwest allergies are a .......