Our focus is on freshwater aquariums since they are generally ... the size and number of fish you want to keep. Keeping fish ...

If you're in the throes of setting up a home aquarium, you may be curious about the types of freshwater fish you can keep as a pet. Often the first fish that springs to mind is a goldfish ...

The male has a large, sail-like dorsal fin that ... Where Does the Swordtail Fish Live in the Wild? The swordtail fish originates in tropical freshwater ecosystems in Central America.

Killed by algae blooms and dwindling from dams and droughts, the largest freshwater fish in North America is at risk in California. Last week, wildlife officials took the first major step toward ...

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.