Is dropsy contagious to other fish?
First, dropsy is not contagious. However, if one fish does become affected, other fish in the same fish aquarium — particularly those of the same species — could also be at risk. In such cases, the fish become affected one by one, until there’s no more of that species left (or the causative issue gets resolved).
What antibiotics cure dropsy?
KanaPlex™ is a blended kanamycin based medication that safely and effectively treats several fungal, and bacterial fish diseases (dropsy, popeye, fin/tail rot, septicemia). Because it is absorbed by fish it is useful in treating internal infections in those situations where food is refused.