Hi my Kelberi is showing signs of possible HITH. I don't know if it is injury or what. His right full is protruding and a little ragged. And he has some spots over his right eye. Water quality: 0 Ammonia, 0 Nitrite, Nitrates 40 ( working on getting it down) pH 7. He is in a tank with Red Hook silver dollars and a Ripsaw catfish. Thanks for your help and advice.