Eco Culture Springtail Cultures provide a natural cleanup crew for terrariums, controlling waste while serving as live food for pets like dart frogs and geckos. Each 8 oz charcoal-based culture is easy to handle, ideal for seeding up to a 30-gallon tank or plants. Simply tap the charcoal substrate over your setup to introduce springtails that reproduce quickly for ongoing maintenance. Packaged for live arrival, each order includes a care guide with feeding and care tips. Be patient as the springtails may be very small initially, but they will grow and multiply to keep your terrarium clean and your pets well-fed.