As long as the "lazy" degu is acting normal otherwise, I wouldn't be concerned
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With treats, make sure you give them each a treat at the same time. In general, though, degus will argue over food. Unless they're drawing blood, there's no need to step in.
With treats, make sure you give them each a treat at the same time. In general, though, degus will argue over food. Unless they're drawing blood, there's no need to step in.