Create the clean-up crew that fits your needs and preferences and save! Select three or more springtails and/or isopods and save 10%. The best springtails for bioactive enclosures based on reproduction rates, cleaning ability, and hardiness are: Humid: Humid Mixed culture, Bylas Ant, Coecobrya Pink springtails Semi-Arid: Semi-Arid Mixed culture, Bylas Ant, Silver springtails The top isopods for bioactive enclosures based on cleaning ability and hardiness are: Humid: Dwarf White, Dwarf Purple, Pruinosus isopods (Powder Blue, Powder Orange, Powder Party Mix, Oreo Crumble, Red Koi, Orange Cream, Pink, Whiteout), Cubaris murina (Little Sea, Anemone, Papaya), Atlantoscia floridana, and if you are looking for large isopods, P. laevis (Dairy Cow, Milkback, Orange, White, Gray) Semi-Arid: Dwarf White, Pruinosus isopods (Powder Blue, Powder Orange, Powder Party Mix, Oreo Crumble, Red Koi, Orange Cream, Pink, Whiteout), and if you are looking for large isopods, P. laevis (Dairy Cow, Milkback, Orange, White, Gray)