Are they the right size?

[Ezekiel285]

I don't have a scale, since I heard that they eat 10% of body weight per week and she eats 70-80 grams small rats I just did that times ten to get that weight.

I believe that you are supposed to feed them that much a week. Not that whatever they are eating is automatically 10% of their body weight. For example you could feed a 1000 gram snake a 20 g mouse per week and that would not make the snake 200 grams. (not that a snake that size should be eating a single mouse a week, please dont do that )