Ok so my tank is cycled I think I added to many fish so I returned 4 and 2 have already died including my platy who I loved alot , I can't afford a API testing kit right cuz I am only a student and my parents won't buy it for me. I went to the store a got it tested they said it was ok the fish don't have red gills o anything I have been adding prime did a 50% water change and 25% daily could it be something else than ammonia effecting my fish ..? I greatly appreciate your help thanks in advance