We're starting with the fish that have temperaments that make them unlikely to get on with other species of tankmates. In ...

Small, colorful, and a lover of habitats with sandy substrates, Red-clawed Crabs are some of the best aquarium pets that aren ...

In a river of western Brazil, an “armored” creature with bumpy lips swam through the “dark tea-colored” waters. Something ...

Try one of these recommendations from a fish veterinarian. Bilanol/Getty Images Reviewed by Nick Saint-Erne There are many fish species that are recommended for new fish keepers wanting to set up ...

Watching fish in an aquarium has been linked to improving stress. Pet fish come in many shapes, sizes, and colors so you’ll need to consider what type of fish you’re ready for. Before You Buy ...

Guppies are among the easiest freshwater fish to keep in an aquarium. You should get at least three and keep them in a tank that holds at least 1 gallon of water for every guppy. The males tend to ...

The "kings" of freshwater aquariums, Discus fish are known for their stunning looks. With stable warm temperatures and clear ...

The fish is more than three feet long and shares a 4,000-gallon tank with a similarly sized large red-tailed catfish at this, one of the area’s largest tropical fish stores.

Scientists caught an “armored” river creature with a maze-like pattern, a popular aquarium pet, in Brazil and discovered a new species. Photo from Getty / iStockphoto In a river of ...

A striking, silver-colored fish commonly kept as an aquarium pet has been hiding in plain sight in the Philippines’ largest ...

But the best aquarium pets that aren’t fish prove that our finned friends aren't the only additions that can thrive in a tank. From African Dwarf frogs and Red-clawed Crabs to Male Painted ...