Today I found one of my other fish (I have the injured goldie) sitting on the bottom, bloated, pinecone scales and missing scales with a sort of gel where the missing scales are (could be fungus? but didn't really look like it). Seems like dropsy of course. I know their are many reasons for the signs of dropsy though, tumor, swollen organ, fluids building up because of bacterial or viral infections or an infestation of internal parasites even. What should my first course of action be? It is separated from the main pond ATM but with the other fish still using my spare tank the best I could do for him is the tote that he is in. I DO have a microscope now but I can never seem to "see" anything with it. EDIT: I do have an isolation basket that I can out into the pond. This video shows it best but pictures are attached as well.