Beyond the usual goldfish and guppies, here are ten unique and captivating fish species that can bring an element of the exotic to your aquatic setup. 1. Mandarinfish ...

There are similar accounts of goldfish invasions in Epping Forest, London; Alberta, Canada; and Lake Tahoe, Nevada. In fact, invasive fish species accounted for over half of the total fish ...

The brighter the fish, the bigger the price tag. Today there are about 120 varieties. To compare, there are about 200 breeds ... goldfish, but they're not even remotely related. Koi are actually a ...

photo by Sasha Prased-Shreckengast With this study, which was funded by an AWI Refinement Grant, we investigated the presence and nature of curiosity in goldfish (Carassius auratus) via novel ...