Goldfish as we know them today are all descendants of the Prussian carp, native to eastern and southeastern Asia, and look nothing like their dull-colored. Fish guide for Common Goldfish with goldfish pictures and information, goldfish care, goldfish diseases, and keeping goldfish aquariums. Habitat: Distribution · Description · Fish Keeping Difficulty · Aquarium Setup. I really want a goldfish, I've had other species of fish before and they have lived . that many posts live yet!) and there's loads of information and advice online. This reduces the amount of air the fish swallows while eating, which in turn reduces the risk of buoyancy problems. Clementine April 16, at Goldfish were originally developed in China. Foods and Feeding Since they are omnivorousthe Common Goldfish will generally eat all kinds of fresh, frozen, and flake foods. They inhabit the slow moving and stagnant waters of rivers, lakes, ponds, and ditches feeding on plants, detritus, small crustaceans, and insects.