My female is turning into a monster. I weighed her about a month ago and she was 760 grams and when i took her out and weighed her tonight she is 981 grams. talk about a growth spurt. thats 221 grams in a month. Has anyone ever had a spurt this big???? I dont over feed her I only switched to rats about 3 months ago and small rats at that. One every 8 days or soo maybe more depending on how large the last meal was. She is not fat you can feel her muscles under the skin not a thick layer of fat. Its just surprising to me that she could be that big at only a year and a half. Well just wanted to know some of your thoughts. thanks. I will try to post some pics of her in a few days shes in shed right now. I couldnt resist taking her out and weighing her because she just looked soo big to me. I havent handled her in a month. lol.