How to tell the sex of the fish

Question
I have two Jack Dempsey's and one chases the other.  Just wondering if maybe I have a male and female.  If so, how do I tell the difference.

Answer
Hi Marshaun,
  That's a great question.  The trouble is that there is no 100% reliable way to sex Jack Dempsey's.  Males are a little "longer" in the body and females a little stockier. The females  carry their weight in the abdomen a little more.  The problem is that all Dempseys vary somewhat in shape so you could have two males that look a little different in shape.  Basically, it takes seeing a bunch of them over time to be able to spot the differences.  

 How large are they?

 If you send me photos, I MIGHT be able to take a shot at sexing them.   Send the photos to the email below.
By the way, in this month's (July) Tropical Fish Hobbyist magazine I have an article with a photo of a female
Jack Dempsey (on p. 106).

-- Ron
  rcoleman@cichlidresearch.com
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