Blackbelt..F or M?

[dyajz]

just bought this fish earlier at the LFS..its about 10-11inches..i have it in a divided 125G right now..its constatly banging against the divider tryin to get to my barred....is it a he or she?..or only venting is possible to tell?..
picture of the blackbelt..

picture of the barred..

 

[sicxspeed]

no idea, but nice fish.....

 

[bigspizz]

Male...

 

[Adhlc]

I haveb't a clue either, but beautiful find.