Bob's correct in that almost all Julies will colonize. This also happens with most of your Neolamprologus species, i.e. Brichardis, Daffodils, Multifasciatus, almost all shell dwellers. I even enjoyed this success with a quad of Apistogramma Bitaeniata. I had 2 different ages of fry in the tank without being bothered by any of the females and the male tolerated the older fry around so long as they didn't come into the spawning cave. I had them set up in only a 20 gallon long. I was pretty amazed when about 20 fry 3/4 inch long were tolerated near new born fry. The older fry didn't attempt to eat the younger fry either. Was a nice set up for quite a while. John Wubbolt ------------------------------------------------------------------------- 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"!