ok my RTCxTSN ive had for 2 months and hes grown from 2 inches to about 7, and tonight i noticed he was barely moving and around the bottom of his gills to his stomach looks kinda grey. his belly was a little sunken in and so i fed him 2 small scallops, which he slowly took only after i pushed them into his wiskers. i moved him a little so i could see his side and i think i saw one of his poops (maybe his?) and it was like ash grey. he eats shrimp, cichlid sticks, feeders, and tilapia and scallops. is this a sign of parasites? what can i use that wont hurt him or small (2.5-4") p.bass? thanks guys! ps did a WC already but he didnt cheer up