I currently have my fish in QT, well i put them in last tuesday because i got ich. I did a water change friday and then sunday. Last nite my maroon clown was acting funny, and this morn he was dead, so i tested and everything was perfect except ammonia. So in my 29 gal qt tank i did a 5 gallon water change, when i got home from work my other maroon was acting like he was on his last leg, i tested and the ammonia was still real high, so i did a 50% water change. He died. But i am worried about my other fish. How do i keep the ammonia down, i have never had this problem in my 100 gallon tank.