I've seen the black blotches on A. cacatuoides and A norberti; wild caught fish only. The cacatuoides in particular looked very nice - quite a calico-like patterning. Never saw any problem with the fish viz health-wise. Unfortunately, I did not get sufficient spawns from the fish to determine if it was hereditary (ie. coloration) vs. a parasite. 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"!