I feed red wigglers to my White's and Fire-belly frogs. I got the first batch of 600-1000 for my compost pile and didn't ever see them again. Later I picked up 50 or so and now I am keeping them in dirt in a plastic tub and feeding them leftover veggies and have a nice amount available for frog food. Just be sure to cover the SMALL amount veggie garbage with dirt so it doesn't smell. (one romaine leaf, several pieces of sweet potato, etc.) It's also becomes great plant food. Keep adding dirt and be sure and keep it moist.