I see this is an old thread, we have learned much about these Viper Boas as of late. I am sorry for the lateness of this reply.... adult Viper Boas should be offered food every 4-6 weeks , so a month was nothing to worry about... baby Vipers are fed every 10-14 days. They perfer frogs and lizards in the wils but can and will take rodents. Hope this helped.