Judging by the face of your fish I would say you have a male and a female. Jacks are fairly easy to sex, So there is no need to put them through the stress of "venting" them.
Judging by the face of your fish I would say you have a male and a female. Jacks are fairly easy to sex, So there is no need to put them through the stress of "venting" them.
mitsu's spot on, females have way more blue spangles on their face and usually tend to be a bit darker in body colour compared to males, both are nice fish but