my bp was having trouble eating on time i changed to every 9 to10 days and she has eaten every time since. i accidentally got a medium gray mouse todaywith the regular small white mouse. she was suppose to get 2 small white but the store made a boo boo. so i tried the bigger gray and she slammed it quick. she didn't eat the other but i expected that. could she like the color or difference? I know she was scared od the medium whites