I think it maybe the end for my oscar. When i noticed she was getting big, i thought she was just full and it would go away in a few hours. But when she stayed the same for a week i thought she might be constipated. So i began doing waterchanges and adding salt. The "swelling" area kinda of stopped "growing" but now has gotten bigger. Lately shes been staying by the drift wood staying still at an angle. I think she might have swallowed a rock and cant pass it. Any Advice is greatly appreciated. Oh yeah, shes in a 120 with another oscar and a few clown loaches.