Help! GBR seems to have significant issue. The underneath of belly area is open and fish is very swollen. Is there anything I can do or is this beyond help? This is a 20g QT tank with 2 GBR and one blue gourami. Options: move gourami out of tank (he's being an a$$), move injured sick GBR out, or wait it out/treat entire QT tank. Wondering if this is...dropsy?

. I have a video but can't seem to post it.