CaribSeas Mineral Mud is a unique blend of sediments that duplicate tropical fringing coastal mangrove environments. Mineral Mud is 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, natural bio available iodine, plus calcium, strontium, iron, and free carbon. In addition, Mineral Mud contains live marine bacteria, to complete the tropical ecosystem.