Bettas are one of the most popular fish species. Most people consider them relatively active, but this isn’t always true.

While Betta fish can tolerate dirty water for a short period, long exposure can cause velvet disease, a parasitic infection that makes the fish look like it’s covered in gold dust.

Tips for Caring for Your Betta Fish. The following tips can help your betta fish live as long as possible. Maintain a low-stress environment. Stress affects all of us, and betta fish feel it, too.

Betta fish, also called Siamese fighting fish, are small, colorful fish that are native to Southeast Asia and common in the pet trade. In Thailand, people call betta fish "pla kat," which means ...