As many of you know I'm dissabled, so due to being in a lot of pain I did not do a water change or gravel vacuum for two weeks. NEVER will I do that again. After doing a 30 percent water change, and a good vacum my tank was so stirred up I could not see anything in the tank. I had a spare filter so I hooked that up, and the tank is starting to clear up. Only 5 barbs, and 2 tetras, so I must be feeding to much, that is the only thing I can think of. my water parameters are great.