Worm Castings 25lbs.BAG SIZE: 25lbs. Detroit Nutrient Company worm castings set the standard for quality in vermicompost. Our worms are fed a fixed diet, and left to create a high quality casting that is excellent for use in soil building, top dresses, amending and making inoculation and compost A. A. C. T. Indoors for use with bottle nutrients, a handful of castings in every planting hole increases plant vigor and health as well as adding to yield. In compost teas these