Tetras are one of the most popular and diverse types of freshwater aquarium fish. With more than 150 unique types of tetra ...

Fish rank as the most diverse group of vertebrates in the world. Scientists recognize over 37,000 distinct species, with many more waiting to be discovered. Most fish fall into the ray-finned group of ...

One type of dwarf corydoras, the hastatus, tends to hide in plants if it’s kept in a tank with larger fish. Guppies. Guppies are a popular freshwater fish for aquariums.

Fish is often hailed as a nutritional heavy hitter — providing a slew of health benefits. Not every type of fish, however, is a slam dunk from a nutritional perspective.

Mesmerizing, kaleidoscopic, and fabulously exotic, the huge variety of types of saltwater fish to pick for your aquarium will ...

Not every type of fish, however, is a fresh catch from a nutritional perspective. WORLD'S OLDEST MAN, DEAD AT 112, ATE THIS MEAL EVERY FRIDAY.