try this
It appeared as if I did not have a strong stream of aeration, and so I bought a new bubble wand to attach to my air pump. Ah Hah....here I found my problem, but I was not sure about it at first. I purchased a new air pump and within one day my water was crystal clear. The motor had slowed on my air pump, and it was not oxygenating the water sufficiently. I had almost given up on the tank and was concerned that my fish would soon die if I didn't get the water quality straightened out. Through trial and error I was able to find the problem and fix it, but it took close to 8 weeks before this happened. My advice is to check your aeration first and perform a partial water change!
It appeared as if I did not have a strong stream of aeration, and so I bought a new bubble wand to attach to my air pump. Ah Hah....here I found my problem, but I was not sure about it at first. I purchased a new air pump and within one day my water was crystal clear. The motor had slowed on my air pump, and it was not oxygenating the water sufficiently. I had almost given up on the tank and was concerned that my fish would soon die if I didn't get the water quality straightened out. Through trial and error I was able to find the problem and fix it, but it took close to 8 weeks before this happened. My advice is to check your aeration first and perform a partial water change!