My gourami has a sore on his left side. I do have an angel fish in the tank who I have seen nip him before. It looks like a little blood under his skin. he seems fine and eats and swims around.just curious if this could be a type of illness as I recently had a zebra die of dropsy. I thought it was pregnant but after researching it, I found out it was dropsy. So the gourami has a sore on his side just curious if I am paranoid after the zebra issue, or if it could just be from the angel fish. thanks/