Sexing Orange Spotted Filefish (Oxymonacanthus longirostris)


They Got My Number
Hey everyone, just picked up a "pair" of Orange Spotted Filefish (Oxymonacanthus longirostris) from my LFS. The owner and I were unsure whether they were male or female but they weren't fighting in their tank for the last month.

If anyone knows how to sex these awesome fish please let me know what I'm looking at! Sorry about the blurry photos, wanted to take some shots of them still in the bag before I let them go and lose track of who's who.

Fish 1:



Fish 2:

Before anyone comments on the difficulty of keeping this fish, I understand their demands and am prepared to get them trained onto frozen food/pellets. If that doesn't work I'm completely willing to keep tossing acros into the tank for them to eat (tank is 99.9% LPS).


gemini aquarius(t)

Always Learning
I have heard that males have orange stripes in their dorsal and anal fins. I dont know how accurate that is.

I would guess that fish 1 is a female. I can't tell on fish 2 but good luck :)


They Got My Number
Thanks, I hope that's not the case as both of their dorsal/anal fins look the same. Can anyone confirm?