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Sexing of Jack Dempsey

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Hey guys and girls,

I have a few Jack Dempseys (about 20 lol) most are still juvies but I was wondering how do you determine the sex of a JD? And also how big do they have to be until you can tell?

Any help would be appreciated,

Thanks guys,


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correct, at least 6-10 cm before and this is then only a rule

Girls have blue on their chin more colour on the face

Boys do not have dots or blue in a line from under their eye but have more body colour and appear bigger

but I have had girls that look like boys and boys that were actually girls

the only true way is the one that lays eggs is the girl

watching them from about 5 cm to 7 cm you will see pairs stay together, this is also away


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