Tsuh Yang, I've been told it's not the meat but the fat that is detrimental to fish (and other cold blooded animals). Excess fat doesn't break down easily at temps below 35ºC (90ºF) and tends to clog the intestinal tract. If you carefully remove all of the fat it should be OK. Mike Wise Piabinha@aol.com wrote: > is there any truth to the assertion i have heard that beef heart and other > mammalian protein is not advisable for feeding fish? i mean, in nature, they > really don't eat much mammalian meat, except maybe piranhas and large > predators, or scavengers? > > tsuh yang chen, nyc, USA > > ------------------------------------------------------------------------- > 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"! ------------------------------------------------------------------------- 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"!