Live Mealworms mixed sizes They come in a container with holes in the lid,bran bedding/food and a piece of vegetable ready to live in until fed to your pet. Mealworms are extremely easy to keep. Mealworms are easy to store and easy to feed. Mealworms make an excellent live food source for small mammals, reptiles and birds. Mealworms are an excellent live food for birds, turtles, reptiles, frogs and aquarium fish.