Changeable Pattern Gene in Betta
- Marble Betta
Marble coloration in bettas is a result of a mutation known as a “jumping gene." This gene is able to move between the fish’s chromosomes, resulting in an ever-changing color pattern. Marble bettas are just as healthy as fish without the jumping gene but may experience a variety of color changes throughout their lives. Some marble fish start out solid turquoise only to end up a few weeks later with a red-and-white butterfly pattern.