I just bought some medium sized mice (14-20 g) and I was wondering if this is an appropriate sized meal. I know the 10-15% rule, and it fits. She's 105 g right now, but she just defecated and passed urates 2 days ago. Before then, she was 110 g. The mouse doesn't give her a lump or anything. I gave her a mouse today and it weighed 15 g. Also, how often should I be feeding her now? Before, she was eating 9-13 g mice and I fed her every 5 days. She was also underweight. Should I stretch the time between feedings to a week or keep it at 5 days?