Hello all, I currently have a problem with my 29 gallon freshwater tank. It has been running for about 2 months now and I've always had problems with ammonia so i have been doing water changes twice a week. I am currently housing 6 gold barbs and 5 cherry barbs. About 3 weeks ago when i tested the water i found the ammonia reading to be 2.0 and the pH to be 6 or lower. Is this bad? Has this happened to anyone here before? Can anyone help with this problem? Thanks in advance.