I'm going through this as well and can't wait until the last of April, so I can get some Tilapia. Last night I was reading a thread several years old about a fellow battling FA with liquid cutrine and he had success at first but he was having to reapply every 6 weeks or so. I'm thinking for myself I'd like to stay away from chemicals if possible. One reason is I figure with all the Farm Ag runoff that fills my tank, I figure I have a healthy dose of fertilizer. In that same thread, there was a fellow recommending corn meal in 50lb bags to grow good bacteria. I hope I worded that right. Anyways it's suppose to help as well, but again I'm going to try Tilapia.