Help! I have a 55 gallon aquarium with juvenile cichlids. I have the api test kit, and I'm showing 4.0 ppm on my ammonia tests, despite frequent 30% water changes. however, none of my African cichlids seem to act as though its affecting them(and I also am having cloudy water). Despite me doing frequent water changes, what would be some other ways to reduce ammonia levels? No matter what i do, the level is staying at 4.0 ppm. Water temp is 78 degrees, nitrate, nitrite is all good, PH 8.2... Despite the ammonia reading, everything else seems to be perfect..