I would think any where from 6 months to 9 months is the age at which most apistos mature enough in the aquaria to spawn, some sooner some later, depending on the species and the aquarists who raised the fish. John ------------------------------------------------------------------------- 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://www.digital.com for "Apistogramma Mailing List Archives"!