Fruit Fly (Producing Culture) Drosophila Hydei Plus FREE Fruit Fly Kit Our Producing Fruit Fly Cultures come with over 100 Fruit Flies with hatch time of new flies in about 9 to 11 days. Included: Ingredients to make a second culture. (just add the flies) (1) 32 oz. cup with vented lid, fruit fly media, excelsior, yeast & instructions. (see photo) Each culture is made with OUR PROVEN FRUIT FLY MEDIA containing two mold inhibitors and all the vitamins, minerals, and color enhancers that your pets need to thrive. Because of this special formula, our cultures can and will produce 1000's of healthy fruit flies. Drosophila hydei are about 1/8" and are an ideal food for poison dart frogs, fish, praying mantis, young frogs and toads, and other reptiles, amphibians, or captive animals that require small foods. We "Quick Ship" (we ship USPS Priority Post the day you order or the next postal day). Transit time is usually 2/3 postal days.