Hi. I just saw a pair of these fish at my lfs. It was labelled as appisto 'opal' borelli german bred. Has anyone have any experience with them? I assume that the blue one was a male and the yellow one was the female? Can you give me pointers on how to breed them? I come from Aus and they were priced at $69.95 a pair. Would this be a good price for them? P.S is it possible to breed them in trios? Thanks in advanced.