Mineral Mud - A unique blend of sediments that duplicate tropical fringing coastal mangrove environments. Mineral Mud particles are in a size range compatible with soft, burrowing infaunal, macro animal assemblages. Ideal for mud refugiums, seagrasses, macroalgaes, and mangroves, Mineral Mud provides a variety of trace elements plus calcium, strontium, iron, sulfur and free carbon. In addition, Mineral Mud contains live marine bacteria to complete the tropical cosystem.