My yearling male is the same way. He gets 2 large fuzzy rats a week or 1 small rat pup a week. I would definitely switch your Dum over to rats ASAP. They are actually more nutritious than mice.
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2.4 dumerils boas, 1.1 albino burmese python, 0.2 bearded dragons, 1.0 german giant bearded dragon & 0.0.1 sulcata tortoise

