Freshwater microfauna rearing and seeding kit. The daphbio® freshwater daphnia and microfauna breeding kit is used to seed your aquarium with live micro-organisms crucial to your aquarium’s equilibrium, and to breed daphnia and microfauna to feed all your fish. To be used when you start your aquarium and every 2 months thereafter. The kit comprises daphnia, ostracods, cyclops, rotifera and other micro-organisms. NB : sending a refrigerated parcel in hot weather.