Yeah I've definitely been checking husbandry every other day- everything is perfect. I'm going to just try & feed him in his enclosure tonight. Thanks for the advice & peace of mind.
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I actually feed him "small" adult mice- 15% of his body weight. I'll try two pinkies that add up to 10 g next, my female mouse recently had 8 babies. Thank you for the advice! Many blessings!