Hi Steven One of the most interesting aspects of this tetra, (I currently have 8 of them) is that they practice internal fertilization. They male places a sperm packet into the female who is capable of holding the packet for a later time to lay fertile eggs without a male present. Randy Cary has an aricle on this fish on his website. <A HREF="http://characin.com/carey/index.html">Randy's Fishroom : for serious and up-&-coming aquarists</A> Tom ------------------------------------------------------------------------- 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. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!