Yah I used a temp gun. I am waiting the week as suggested so Monday ill offer frozen once more. If she doesn't take it should I wait another week to get a live one or just get it that day? As well in response to my offering of the medium rats Roxy is 957 and the one rat is 140 so it does seem too big it is a bit bigger then her girth so do u still think I should offer the medium Monday or go with the smaller one again