I have been in a constant battle with cycling my tank. I added 2 packets of bio-spira to my 55 gallon tank to try and balance the tank out, It has been running since the end of december. Today my parameters were, ph 6.2, ammonia 8.0, NO3 is 10, NO 2 is 5. I did a 40 % water change this morning, then a 25% change tonight and they are about the same. I added prime ammonia remover, oh and also after the water change why water turned very cloudy. I am running two power whisper filters a 60 and 30, but i had to change my cartridges because the water flow was very poor, I rinsed off my cartrdige in the water like it says too keep the bacteria but by doing that it made more of a mess, so as of now both filters are running the fish have been surprisingly well no signs of wackyness or such but i am ready to pull the plug because i dont know what else to do. Any ideas?