Gallon Potting Mix Island Planters Pet Supply. Pet Supply » All Pet Products » Tropical Fish » Ponds » Fish Pond » Accessories Fish Pond • Filtration Tubing Fish Pond • Plant Fertilizers Fish Pond • Ultraviolet Sterilizers Fish Pond • Water Conditioners Fish Pond • Nets 3 Gallon Potting Mix for Island Planters buy bestselling pet products, supply find reviews, ratings, prices Features • Blend of calcinied clay and potting soil mix. • Provides the right buoyancy for island planters and acts to absorb nutrients from the pond water. [ + Zoom ]   [ Buy Now ] Lawn & Patio : This item is currently not available. Non User