[Ebook] Encyclopedia of Aquarium & Pond Fish – Introduction to Freshwater Fish – Illness and treatment – Health concerns
Fish are susceptible to a wide range of bacterial, viral, fungal, and parasitic diseases. The artificial conditions in the aquarium tend to concentrate the risk of disease and increase the speed at which illnesses spread, because fish health is strongly influenced by the quality of the environment. Early intervention can head off many of the most common conditions, but, as with humans, prevention is always better than cure.