Aquarium Fish Disease – Why Do We Get It?
Aquarium fish disease and why healthy fish get sick is a problem that has plagued aquarium keepers for years. Whenever we introduce new fish to an aquarium we run the risk of introducing disease or is it already in the tank? There is a chance that when you introduce new fish, they will bring with them new parasites or diseases that your tank doesn’t have and if your fish have never been exposed to them there is a fair chance that they will have little or no immunity so yes new fish can bring disease to your existing fish and new fish can also catch diseases from your apparently healthy fish. Your fish at some time in the past may have suffered an illness and developed immunity to it. New fish introduced to the tank can then be exposed to an illness that they have no immunity for. Using a quarantine tank and introducing new and old fish inside the quarantine tank can soon show you if that is the case without risking your whole fish collection. Just use one of your cheaper existing fish
