I'm new. I live in FL (East Coast) and have well water. We've never had a problem in any of our tanks till lately with whopping amonia spikes from our water. Our tanks, and we have plenty, are set up with gravel and we recently switched to a pea size gravel. My question is could something in the pea gravel be causing the spikes. We have been doing ammo carb in all the filters, but still need to use products like Prime in order to bring levels down. Something else that I can't understand is when we treat the tanks with the Prime, the tanks still tests for amonia. It says it immediately lowers the levels, but test results remain the same. Is it taking the amonia out or breaking down the amonia? This is getting to be a real mystery, can anyone give me some guidelines? Thanks