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Old 05-18-2014, 02:11 PM   #1 
Join Date: Mar 2013
question regarding genes

i have a young double tail male, mostly white with some purple, but i noticed he's starting to display Black. Some of his scales are black, and he's got black patches on his fins. If he's displaying it, would he be carrying a black gene?
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Old 05-19-2014, 01:17 PM   #2 
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Join Date: Jun 2010
Location: Jakarta, Indonesia
For a betta to be white, it needs "blond" genes which eliminates black pigments. Often in white bettas, the blond gene is . . . not fixed (?) . . . may (sort of) give way and thus black appears.

There are a few myths about white suddenly showing black markings. Some say it is caused by to much sunlight, while others say it is food related. Not sure of the actual "why".
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Old 05-19-2014, 09:10 PM   #3 
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Join Date: May 2011
Location: QLD, Australia
Probably a marble that turned cellophane and is turning back
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