This is my first post here. I've had my beautiful boy Monet for almost 8 months but I've always thought he looked kind of old. The pet store I bought him from didn't have any idea about how old he actually was. A recent heater malfunction caused the temperature in his tank (it's a 5.5 gallon) to drop from 80 to 75. Then the new heater caused the water temperature to spike up to almost 84. It took several days before it stabilized, and even though I kept cooling it down some, I think the stress was too much. Monet now seems to have dropsy. He's lethargic, his belly is rounded, scales are protruding, and he's refusing to eat. I tried finding info on what to treat him with but it was all quite discouraging. The first thing suggested was salt, so I did a teaspoon per gallon as recommended, just in case by some miracle he can recover. There were a few live plants in there but I took them out before adding the salt. I didn't want to risk stressing him more by moving him to the quarantine tank. I don't have any way to test for hardness but the other water parameters are Ph 7 ; Ammonia 0, Nitrite 0, Nitrate 40. Does it actually sound/look like dropsy to anyone else? Any other ideas for treating?