Bolivian Rams Club

Sexing Guide

Written by Blair Stacey

Let me help you with determining the sex of Bolivian Rams. Take into account the only definite way of knowing is venting them, or seeing them spawn. The other details I will show you here are simply generalisations of the differences you would expect to find between the sexes....

First up, ventrical differences:

Notice how the males tapers back towards the anal fin, it is also considerably smaller than the females which points downwards and is visibly fatter.

You can also see the difference in the length and shape of the pelvic fins, although this is not a sure-fire way of telling it can be an indicator.

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