Would you feed these mice?

[Mike41793]

Okay weighed them. The grey one is 13 grams, black 16. They've gotten a lot bigger since first got them but the part that concerns me is that they were just as round bellied when I got them as were all the other hoppers in the bins. Next to an adult mouse: please disregard dirty rat shed, we were cleaning

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Is it just me or does that white aldut mouse in this pic look kinda big too?

Are these mice like XXX-L jumbo mice lol?