>>> "A. Inniss" <andrewi@u.washington.edu> 03/24/98 07:43am >>> > Question to other apistophiles: the sexing method I mention above >seems to work well for many spp. I'm familiar with, but I'd like to know >with which spp. this technique wouldn't be helpful. Andrew A little late on this reply. Using the black fins to sex apistos does = work for a lot of species but not all. One that comes to mind is A sp. = four stripe (aka ayachuco). Kathy