This is the best picture i could get...these fish just dont want to behave. he is only about 7 inches, but from other pictures i can find online it looks male to me.
the anal fin is about twice the size of the rest of the fish in the tank...but he is only 7 inches or so. isnt that too small for the males to develop the wide anal fin?
Might just be a male in "heat" as it swells and becomes larger than normal. Mike Sema has a male that seriously has an anal fin the size of a dinner plate