Do you feed live or pre killed? If you are trying pre killed mice you may try one live, I have two picky eaters that won't touch pre killed but go crazy over live mice. If I were you I'd breed a pair of gerbils, looks like they have an average of four babies per month, perfect for one snake. All you need is a breeder tank and one or two grow out tanks. I'd suggest trying pre killed gerbils at first, safer for the snake. I offer all pre killed first, then live only if they don't eat. CO2 is awesome for that too. I have way too many snakes getting bit from live rodents.