NEW: 2 Species to Choose From Regular Flightless Fruit Flies (Drosophila Hydei) At approx 3-4mm long, D.hydei is the larger of the 2 species of flies we sell. Available in both cultures and tubs of flies only *NEW* Golden Flightless Fruit Fly Culture (Drosophilia melanogaster) A smaller species measuring around 2mm. This species is suitable for much smaller species of dart frog and invertebrate and also has a faster lifestyle than regular fruit flies. We offer two different ways to buy fruit flies online at Internet Reptile; cultures (which hatch flies over time) and 'flies only' (which are hatched and ready to feed). Cultures This is the traditional way to buy fruit flies, each tub contains a mix of fruit fly media in which flies have laid their eggs. Simply keep the culture warm and the flies will hatch over a week or so giving an ongoing supply of fresh fruit flies. Depending on temperatures there may be some live flies at the point of delivery but this is not always the case. Flies Only If you need flies in a hurry, this option is just like any other livefood, its simply a tub containing flies which you can use straight away. Note that flies can be quite short lived so they tend to be best when you have an immediate need. Keep a slice of banana in the tub to help them last longer. Live arrival guarantee:We understand these items are not sold to be used immediately, we therefore extend the policy to 7 days to allow ample time for hatching, please keep them warm and report any issues (e.g. not hatching) within 7 days of delivery.