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Guide to Goldfish: Everything You Need to Know about Caring for and Feeding Them

Koi and goldfish are often seen swimming in the same ponds or aquariums, so most people think they are the same fish. In reality, koi (Cyprinus carpio), and goldfish (Carassius auratus), are different members of the same family: carps. Our expert Bright Hub writers have compiled an extensive library of articles about these gold-colored fish on a wide variety of topics like:

  • What are their differences and similarities to carp?
  • What are the different color variations found in their populations?
  • What do they eat and how do they mate?
  • How many varieties are there?
  • What is the best pond or aquarium?
  • What are some common diseases?

The answers to these and other frequently asked questions (FAQs) about these fish can be found in this guide. Bookmark this page for easy reference and research.


Black Moor GoldfishBlue Oranda GoldfishCelestial Eye Goldfish

Image Credits

Black Moor Goldfish/Wikimedia Commons/humanfeather/Creative Commons Attribution 3.0 Unported License

Blue Oranda Goldfish/Wikimedia Commons/Svampen/GNU Free Documentation License

Celestial Eye Goldfish/Wikimedia Commons/JasonMarini/Public Domain

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