These amazing animals are best kept away from other less aggressive fish. From garden ponds filled with Koi Carp to the humble goldfish bowl (although goldfish really need more space to be happy and ...

Peaceful tanks look great, but they’re not always the most exciting. Some fish bring a lot more drama, and for hobbyists who know what they’re doing, that can actually be the fun of it. These ...

Colorado might not be home to predators like alligators, sharks, or water moccasins, but it's got a few fish that can bite back. While Centennial State aquatic life probably won't kill you, it could ...