Some aquarium buddies are much more interactive than you'd expect—they follow their owners around, beg for food, and even ...

For aquarium enthusiasts looking to add a touch of the extraordinary to their tanks, there’s a world of unusual fish species ...

Choosing the best tropical fish for your freshwater aquarium can be quite a challenge, especially when you see the amazing variety of species on display at most respectable pet stores. One group ...

The Southeastern Michigan Aquarium Society held an auction Saturday, where hobbyists spent hours bidding on colorful fish to ...

Aquarium enthusiasts are often on the lookout for colorful and exciting species that they can raise in their personal tanks. Rainbowfish are a broad category of fish that meet these requirements.

This story appears in the April 2017 issue of National Geographic magazine. Hundreds of millions of people worldwide would lack their prime source of protein without freshwater fish. Yet the lakes ...