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Re: [Fp. gardneri Akure BLUE]-- normal color patterns
>>>It has been found that, in the wild, both color forms occur sympatrically. <<<
>>>New evidence suggests that the environment can have a rapid and long lasting (even multi generational) effect on the organims by means of DNA methylation.<<<
Okay. What's next? It sounds like there may be an environmental variable that triggers the blue form. Joel suggested that the degree water opacity may be the trigger. (BTW, how would one dirty up a tank to reduce viability safely?) But I suspect that most killie tanks in captivity are clear and the blue form has appeared from time to time.
Perhaps there's another trigger that coincides with water opacity, such as mineral content. I know in S.A. there are "white water" rivers from the mountain minerals suspended in the turbid water, as opposed to the clear "black water" from leached jungle vegetation.
This is an interesting thread. I know that diet can affect color, but that's only the intensity. Here we are referring to a complete switch of pigmentation (or are we?).
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