Every aquarium owner hopes for one thing. A perfectly clean tank that somehow takes care of itself. It sounds ideal, but ...

The swordtail is a beginner-friendly tropical fish species. This hardy fish comes in various vibrant colors and can be kept in a freshwater tank as small as 10 gallons. These traits make swordtails ...

Betta, or Siamese fighting, fish are among "the most popular freshwater aquarium fish in the world," PetMD reports. Native to southeast Asia, this species is known for its range of vibrant hues. There ...

Contrary to popular belief, many aquarium fish can live for decades with proper care, becoming long-term companions. Species like goldfish, clown loaches, oscars, angelfish, and plecos are known for ...

So, you’ve bought a fish tank or you’re thinking about buying one and you’re wondering what the 15 best tropical fish for beginners. Well, we have a great selection below for you to consider. All the ...

A tiny, yellow-and-orange juvenile warty frogfish rests on a coral-like object in a habitat at Chicago's Shedd Aquarium. A tiny fish is making big waves at Shedd Aquarium as animal caretakers ...