Ive never found Nijsenni picky about mates..... i just add any male and female into a tank, feed them well... do lots of water changes and wait till they spawn...... normally not that long either I think the last pair I put together waited all of 3 days till they spawned...... but then again , they were wild caught fish too..... My large adult pair spawns like once a month..... raises their fry very well.... then i move them so they can spawn again..... But im sure Mike will tell you im doing this all wrong..... lol.... John ----------------------------------------------------------------------- -- 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