the only changes i done was add a few live plants and 2 krawfish to help keep the bottom of the tank clean. i did a 3/4 water change and still no difference. i have a 20 gal tank and used some Jungle clear water that is supposed to remove odors and cloudiness, i took out the carbon filters first though. any thoughts on what could have caused this? i caught a bluegill that was about a half inch long and currently he weighs a good pound so i dont think the krawfish are gonna hurt him any. any replies would be great! i dont want to lose "sir eats alot", he has become a member of the family. thanks