my flower horn ( nikko) is swimming sideways. its lyk he is floating on the top of the tank. he s having sum holes near his mouth.i m using sum med prescribed by the vet.yet his condition is getting worse. i evn noticed sum worms in the tank jus after i cleaned the tank nd gave him medicines.his belly is swollen.its been almost two weeks since he ate anytin.i m really worried.can sumone help me???