Cacatuoides sneaker male or female?

[Alberto]

Is this a sneaker male A. cacatuoides? Or is it a female? I first thought it was a female but im beginning to think its a sneaker male because it avoids my other male cacatuoides like in a boxing ring and doesnt seem to swim near him instead it hides, when it sees the male it seems to want to appear bigger by extending its fins like in the picture. Even tho its smaller its caudal fin is slightly lyre shaped but not as obvious as the real male

 

[Drayden Farci]

Potentially male but I would just wait. The very very slight extensions in the first few dorsal rays, the end of the dorsal, and the tips of the caudal are male traits, but I think the fish is a little young to be sure yet.

 

[Mike Wise]

I agree, wait a bit and see. Domestic color strains can be hard to sex when young. Increasing the color intensity of fish quite often leads to the appearance of masculine features in females.