My mom says the stuff that fixes, PH, nitrate, ammonia levels But on the thing she has it says removes chlorine and chloramine it says nothing about ammonia and nitrate. Should I just do water changes 20% water changes every other day? And hopefully hope that its making the water ok. The tank is only about 2 months old and I never knew about water changes til like a few days ago. And theres 4 fish in there. Until I can make $10 on my own could Ir fix the water even though I dont know if its bad.