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Retardation in submissive males.

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Has anyone else who keeps more than one male Common Bristlenose to a tank ever noticed that one male has longer bristles than the others?

I've got 2 males and 2 females in one tank, and surprisingly the larger of the males (Who is a stripy combination of light and dark brown) has smaller bristles than the smaller (Almost black) male who has been the clear Alpha male.

Just wondering if this is a common occurrence?

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