This is a Easy Feed Bottle of freshly seeded/inoculated fruit flies that will hatch in two weeks. The easy squeeze bottle will easily let you feed your pet ants, praying mantis, anoles, geckos, bearded dragons, tropical fish, jumping spiders, tarantulas, and tree frogs. This is a 14 FL oz. bottle seeded with flightless drosophila hydei fruit flies, media and excelsior. The flies should hatch in approximately 2 weeks and after that a second hatching will be available in another two weeks. So don't throw it away. The media on the bottom is used by the flies for food and they lay their eggs in it also. Just store at room temperature and away from direct sunlight. The easy feed nozzle allows you to pinpoint feeding without letting flies escape and no need to fridgerate the bottle. Just gently squeeze the bottle to the area you want the flies to be in. The bottle comes with approximately 50 producing flies and ready to feed your pets. If your bottle arrives and most of the flies appear to be dead please dont't toss the bottle away because there are eggs in the pink media andthey will eventually turn into maggots, larva, then pupate, and then into adult flies in about weeks.