Mike, I went to the LFS this evening to sell off some of my double tail bettas- I checked out the apistos while I was there- there was a tank full of 'assorted apistos'. Turns out most of them were regani- I picked up two males and brought them home- about five minutes after being in my community tank the new males started on some serious courting of the now bright yellow females. I guess they were old enough to sex- I simply didn't have any males to figure out the difference- It is now very obvious. I had another look at Linke and Staeck- the regani that are pictured are both males of differing ecotypes. Cory ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!