S.T. International Aqua Soil for Aquarium Plants, 4.4-Pound, Black Designed for aquatic gardens Formulated with special ingredients that produce nourishing enriched soil perfect for aquatic plants, small fish, shrimp, crabs, crayfish and snails Designed for long term use and doesn't easily disintegrate Professional grade soil with a pH value between 6.7-7.0 No need to wash the aqua soil before use