You don't put much in it so the SevinDust won't hurt them.
ETA: DE is more of a preventative than a treatment. If you don't have problems with mites you can use DE, but if they have mites you're better off using the SevinDust.
ETA: DE is more of a preventative than a treatment. If you don't have problems with mites you can use DE, but if they have mites you're better off using the SevinDust.
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