Both new and experienced pet fish owners often fret about finding a healthy species to introduce to their aquarium. But, how do you even measure the health of one species against the others? And is ...

The best types of fish for first-time owners are fuss-free, easy to maintain, and hardy. But just because they might be a dream to look after, it doesn’t mean they’re dull. In fact, many of the ...

By Edward Carver The United States is the main market for “ornamental” marine fish, those that end up as pets in aquariums.

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 northeastern Brazil ...