Forgive my limited knowledge of fish genetics, but if there is a change in sex and successful spawns, is the genetic information passed on the same way everytime, or does it change? ( I am thinking of X and Y chromosomes)...will the once female-now male produce Y chromosome-related genetic material to pass to the fry? or has anyone noticed or documented spawns of only female fry in these cases? Does sex-linked genetic material exist in fish? it seems someone opened a whole can of blackworms... ----------------------------------------------------------------------- -- 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