Hi, I’m trying to re-establish the cycle in my tank and I’m having some troubles. Two nights ago I had readings as follows: Ammonia 0.25, Nitrite 0.50, Nitrate 10.0. I did two 50% PWC back to back, vacuumed the gravel a bit and added a maintenance dose of bacteria. Last night my levels were: Ammonia 0.25, Nitrite 0.25, Nitrate 5.0. I didn’t have time to do any PWC last night. Tonight my levels were: Ammonia 0.25, Nitrite 0.50, Nitrate 10.0. I did one 50% PWC, vacuumed and added the last of my bottled bacteria. I understad how the Nitrite and the Nitrate went down and back up around the PWC but I don’t get why the Ammonia stays the same. Also, how can I get rid of the Nitrite without doing so many water changes that my fish become stressed? Also, am I slowing down my cycle by doing all these water changes? Please help!!