Hi Orlauskas,
I would put put one tube directly in your vivarium. The second tube, I would culture in distilled water and charcoal and feed a little bakers yeast. When you need to feed out, just pour off your springtails ( they float)! The springtails in your viv will reproduce and provide snacks for your frogs. Take care and best of luck to you.
Judy





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. Might need to smash large pieces with hammer; do wear eye protection and respiratory mask if doing so. Do not recommend using compressed briquettes because of binders and chemicals in them.

