Marble coloration this color change is caused by a jumping gene which can make the betta fish change color multiple times in his lifetime and may even change his colors completely.
Betta marble coloration.
Spawns of either dark or light bodied solid color betta fish from marble stock will produce three different offspring colorations.
Betta fish breeders have inserted a jumping gene also called transposons into the gene of a normal betta fish to create the marble betta fish variety.
These transposons are what make marble bettas notorious color changers.
Marble bettas are just as healthy as fish without the jumping gene but may experience a variety of color changes throughout their lives.
But instead of having 3 colours in a marble effect there is only 2 colours on the body.
Marble coloration 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.
Genes are responsible for a variety of things.