There are over 70 species of betta fish, with the most common pet varieties being the crowntail, delta, double tail, and halfmoon. Betta fish purchased from a pet store can live up to seven years ...

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. Human ...

Betta fish are known as fighting fish because they are territorial and aggressive. The small-sized fish with iridescent bodies and multi-hued tails are typically kept singly to prevent them from ...