I am at my wits end. I have reduced my population in my 16gal tank as of a week ago. I now have 2 platies, 2 mollies, 1 clown loach (still small), and a rubber lip pleco (pink & small). I have added live plants as well and have been continuing water changes every 2 - 3 days (cut back from 3 - 5 gal per change to 2 - 3 gal per change), changed my filter cartridge, added ammonia removing media to the media cartridge (Emperor 280 PF) and the ammonia levels are still through the roof. All other water conditions (PH, Nitrite, Nitrate) are excellent. Vacuuming gravel every water change. I have even added API Beneficial Bacteria conditioner. Outside of draining the tank completely not sure what else to do. The clown will be moved to the 29g with the angels in a couple of weeks, but I find it hard to believe that this will make a significant difference. I continue to use API Ammo Lock to trap the toxicity. Any ideas?