Help sex my Jack Dempsey!!!

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Sicklidz78

Feeder Fish
MFK Member
Jun 21, 2014
29
0
1
Virginia
Pretty sure its a female due to the blue spangling below the gill plate but the red trim on the dorsal fin throws me off a bit. I know some females do and some dont have the trim and is most always on the males.

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Bought her about 3months ago at a petsmart for 8.99 i think. She was mostly brown with a few black markings. She is beautiful to watch tho. Thanks for the help confirming my original quess.
 
Great looking JD. Not to steal from the thread, but what traits do you use to tell the difference between male and female?


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The most reliable way to tell male from female Jack Dempseys is to check their cheeks. Males have bluish spots directly behind their eyes, with no spots on the lower part near their mouth. Markings on females extend the full length of the cheek with large iridescent blotches on the lowest part of the cheek. Another way to tell is to look at the tail fin. Males have pointed edges to the tail fin, where females have rounded edges. The anal and dorsal fins also are pointed in males and rounded in females.
 
Curious about the red line on the dorsal too. Most of the info i see on Jacks is that the male has them and for most part not the female. Is there a certain region or "type" for lack of a better word, that is typical of the females having this?

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