So I literally just did a water change maybe 2 days ago it was 60 gallons I have a 200gallon aquarium. My question is whenever I removed everything filter floss and socks cleaned them and then I removed some pretty old ammonia and phosphate pads my ammonia is still reading 0.2 and nitrate at 5 nitrite at 0 how is this happening all the fish are still alive and with such a large tank invert or 2 dying shouldn’t effect it too much. My only thing is that i took the ammonia and other pads out literally 20 minutes ago and did a test for a ammonia before and after I removed them. I also don’t feed very heavy I feed pellet a maybe do 4 pinches.
