Certainly you must have seen on the web or in person bettas called KOI, Fancy, Galaxy, Black Mamba, Black Samurai, Monster and others. And yet, questioned how to obtain them.
Bettas with these phenotypes are classified as unstable multicolored. In other words, its visual characteristics (colors and color arrangement, specifically) change spontaneously throughout the life of the betta. In the most extreme cases, these multicolored ones completely lose all colors (body and fins), originating the so-called cellophanes (cellophane).
The two genes responsible for this feat are called Red Loss and Marble, sometimes acting simultaneously, sometimes not. In this way, the individuals resulting in the broods of matrices with these sets of genes will not have for sure the same pattern of colors and arrangement of their matrices.
These patterns have gained significant fame among those who appreciate colorful bettas, but are often unaware that that commercially named “pattern” is changeable over the life of the fish, changing in a matter of a few days or weeks, suppressing colors and / or brightness, including the existing opacity (of course, if any) changing them without predicting when or how it will occur.
On the other hand, we are aware that the market and even exhibitions of bettas around the world have received and appreciated unstable multicolor with a strong appreciation. However, Betta Genetics allows the identification, both of problems that may occur throughout the work of the creators, and possible solutions to eradicate (or minimize) those problems.
However, as part of the Betta Project’s mission is to alert you to the fact that when these two harmful genes (Red Loss and Marble) are introduced in stable strains – we reiterate – in stabilized, traditional strains, there is a lot of damage sometimes irreversible, because the predictability of results obtained in these (previously) stable strains will cease to exist. In other words, we will start to get only those unstable multicolored.
The following video provides more details on the origin and genetic modeling of these specimens.
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Good luck with your bettas!