ID my wifes new pet.

[thefishguy7]

IME, jags do not develop fin extensions until they are larger. (7"+) Based on pattern, I'd say you have a male.
Good luck with the dovii, the 300g rubbermaid will fit him nicely. Post pics when set up...

 

[Mudfrog]

Dovii looks female to me.. not sure why everyone is saying male.