jus curious wat it would mean when one of my red belly is upside and jus at the bottom of the tank. can someone give me sum advice as to what it would mean.... i jus did a water change for the tank but i also had them out of the tank so i can re-arange the tank and put sum more hiding places. my other 3 rbp are doin jus fine and my oscars is also doin fine......give me any good advice, or theory to solve this situation thanks