[Ebook] Encyclopedia of Aquarium & Pond Fish – Introduction to Pond Fish – Illness and treatment – Health concerns
Regular pond maintenance and water-quality checks help keep diseases away from fish, but illnesses still occur, even in the best-kept ponds. The first sign of a problem may be a fish floating at the surface, by which time it is probably too late for effective treatment. For this reason, it is vital to set up a routine for examining fish; feeding time provides an ideal opportunity to check their appearance and behavior.