Truth is, the best environment for a Comet Goldfish is probably a large pond. This species is a staple in outdoor ponds. They're often kept in large groups with Koi and other species. Ponds offer tons of room for the fish to stay active.What do goldfish eat in their natural habitat?
Habitat: Goldfish can be found in freshwaters throughout the world including indoor artificial aquarium and tanks. Diet: Goldfish are omnivores in nature. They primarily feed on larvae, detritus, plankton, peas, small mammals, amphibians, birds, insects and reptiles.What is the natural habitat for a goldfish?
Natural Habitat for Goldfish Goldfish are ubiquitous in nature and can be found in rivers, streams, lakes, ponds, reservoirs and virtually every freshwater habitat on the planet from temperate to tropical environments. They have been introduced to many parts of the world to control mosquito populations.