Lee, No, the lateral spot, on the side of most apistos, is seen on both males and females. Males usually show it when frightened, stressed, or are a subdominant male. It is often hidden on dominant males. Mike Wise Lee, Marshel wrote: >Dear Sir or Madam, > >I wonder if the black spot on the side is also a tip for sexing them. > >Best regards, >Marshel > >-----邮件原件----- >发件人: Mike & Diane Wise [mailto:apistowise@bewellnet.com] >发送时间: 2003年12月4日 0:59 >收件人: apisto@v2.listbox.com >主题: Re: How to sex A. Bitaeniata > >Lee, > >If you cannot sex your fish, then they must be very young. Males will >eventually develop high dorsal fin lappets and a double tipped tail fin. > >Mike Wise > >Lee Marshel wrote: > > > >>Dear all, >> >>I was importing a few A. Bitaeniata from Peru last month. But I could >>not easily identify the sex of this species. >> >>Anybody could tell me some tips on how to sex them. Thanks in advance. >> >>Best regards, >>Marshel >> >>----------------------------------------------------------------------- >>-- 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 >> >> >> >> >> > > >----------------------------------------------------------------------- >-- 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 > >----------------------------------------------------------------------- >-- 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 > > > ----------------------------------------------------------------------- -- 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