I have read a lot about this, but I figured I would post and see if anyone had any other ideas.
I have a male pearl gourami I have had for a few weeks now. I came back from a long weekend and he has become reasonably bloated. They are a fairly thin fish, so it doesnt take much for you to notice it.
I figure the two options are dropsy or constipation. He is not a very aggressive eater, and about the only thing I saw him go after was
brine shrimp and the occasional flake. He was not bloated before I left and they had no food over the weekend, so its not overfeeding. However, I do not see the "pine cone" effect of the scales on him associated with dropsy.
In any case I have moved him to the quarantine tank. He still appears to swim around just as he always has. I tried to feed him some mashed up peas yesterday. He had no interest in them, but the two platys who keep the quarantine tank cycled gobbled them up.
I will have to post pictures later when I get home. Any ideas or suggestions in the meantime?