Mineral Mud™ - CaribSea's Mineral Mud™ is 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, macro-algaes, and mangroves, Mineral Mud™ provides a variety of trace elements, chelated trace elements, plus calcium, strontium, iron, sulfur and free carbon. In addition, Mineral Mud™ contains live marine bacteria, to complete the tropical ecosystem.