Foxface rabbitfish... sexing, comp.  5/31/06 I have two Foxface rabbitfish. I was wondering how to tell if you have a male or female. <Mmm, not able to discern this family of fishes sex externally>   I has the black dot and the other has one but it is very faint. <Not a sexual difference, but geographic...>   You wouldn't know it has one unless you look for it.  If I have the male and female how would you introduce them being they are in different tanks. <Better to keep these separated unless the tank is huge (hundreds of gallons). Bob Fenner>