Tropic Marin Pro-Coral Organic Stimulates coral growth and reduces phosphate levels in marine aquaria. Tropic Marin Pro-Coral Organic contains valuable protein components and minerals that stimulate the growth of leather corals, disk and crust anemone species. As a result, another component of all living organisms, i.e. phosphate, is absorbed from the water by anthozoa that reduce phosphate levels in the aquaria. These natural conditions help the animals to thrive an exhibit more natural growth and colour qualities.