these are two fish i recieved in the mail a few weeks past they were supposed to be 1 male 1 female i'm not positive but i believe it is two males. The larger of the two(1.5") i'm certain is male. the smaller(1") of the two at first i thought was a female but has not developed any black markings on the ventrals .
this is the larger
and the smaller
this is the larger

and the smaller
