https://en.wikipedia.org/wiki/Goldfish

The goldfish (Carassius auratus) is a freshwater fish in the family Cyprinidae of order Cypriniformes. It is one of the most commonly kept aquarium fish. A relatively small member of the carp family (which also includes the Prussian carp and the crucian carp), the goldfish is native to East Asia.

http://www.bbc.com/earth/story/20141017-four-secrets-goldfish-are-hiding

Oct 21, 2014 ... While chi are native to the rivers and lakes of eastern and central Asia, goldfish are now found throughout Europe, South Africa, Madagascar, ...

http://www.biokids.umich.edu/critters/Carassius_auratus/

The common goldfish has two sets of paired fins - the pectoral fins and pelvic fins, ... These animals are found in the following types of habitat; temperate ... wild because they breed quickly and are capable of crowding out native fish species.

https://www.nytimes.com/2016/09/23/science/discarded-goldfish-invasive-species.html

Sep 22, 2016 ... Freed from the constraints of a tank, goldfish balloon to the size of footballs. Within a few generations, they revert to natural yellow and brown ...

https://animals.mom.me/goldfish-live-4748.html

Natural Habitat. Goldfish are prevalent in freshwater settings, particularly those that are sluggish and calm. They tend to prefer water that is a little on the thick ...

https://www.ducksters.com/animals/goldfish.php

Goldfish are a popular pet. Kids learn about how goldfish live and how to take care of this fish.

https://www.petmd.com/fish/care/evr_fi_facts-about-goldfish

Read more to learn all about goldfish then and now, plus some fun goldfish trivia. ... Goldfish as we know them today are all descendants of the Prussian carp, native to eastern and southeastern Asia, ... What Makes a Good Goldfish Habitat?

https://animaldiversity.org/accounts/Carassius_auratus/

Habitat. In the wild, goldfish can be found in slow-moving, freshwater bodies of ... wild because they breed quickly and are capable of crowding out native fish ...

http://www.tsusinvasives.org/home/database/carassius-auratus

Wild goldfish become much larger animals than the domesticated goldfish ... bacteria species, and koi herpesvirus, all of which can harm native fish populations. ... U.S. Habitat: Any freshwater system, especially those with submerged aquatic ...

https://www.aqueon.com/information/care-sheets/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 ...