sexing red zebras

firestond

AC Members
Nov 25, 2003
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woodstock, ont.
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i have 4 red zebras in my tank, and 2 of the larger ones (might be larger cause i bought them first, but it has been 5 months) have white markings on there jaws which appeared about a month after i got them. i was wondering if this is a common mark among males?
 
I have three red zebras and they don't have any white around their mouth. Mine are pretty much orange except for the bottom of them is a little more of a white color.
 
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