Do goldfish really grow to the size of their tank?

Care Guide for Fancy Goldfish – Housing, Feeding, and More – Aquarium Co-Op

What Size Tank for Goldfish? - INJAF

In the Wild, Goldfish Turn From Pet to Pest - The New York Times

Choosing Live Plants for Goldfish Aquariums - Aquarium Tidings

goldfish - Kids, Britannica Kids

Common Myths About Goldfish Debunked

17.5.2. Size of Goldfish

Goldfish Myths Debunked Tropical Fish Hobbyist Magazine

Goldfish - Wikipedia