Eric, If these are out of the same group that went thru Aquatek, you should have no problem sexing them. The males have really long ventrals(when carried close to the body they reach the caudal peduncle) and the dorsal are almost as tall as the body. They are also showing those 4-5 dark patches on the lower back half of the body when they display a threat. Now..... catching the exact fish you wanted out of that tank was an adventure. As soon as the net hit the water they scattered and boy are they fast. There were 20 or 30 of them there, maybe someone else here in town has an extra male. I have had one unsuccessful spawn, but the female is yellow and caving again. I have been treating them like blackwater fish, but there is not much info out there on these guys. How many forms are documented? The ones we have are not the same color as the ones in Romer's. His are red/brown, these are more gray/green with yellow becoming visible in confrontations, with the femal looking as you described, yellow with a single spot. Tim ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. apisto-digest@listbox.com also available. Web archives at http://lists.thekrib.com/apisto Trading at http://blox.dropship.org/mailman/listinfo/apisto_trader