"SEACHEM Reef Zooplankton� is a concentrated blend of marine zooplankton designed to provide the essential fatty acids, proteins, vitamins, amino acids, with biological carotenoids for coral growth. The particle size range is 12.5-500 ?m to feed a broad range of marine aquarium inhabitants. This coral food contains a natural source of carotenoids which provides essential proteins as well as a more bioavailable source of pigmentation when compared to other natural sources and synthetic pigments. Carotenoids provide the extra benefit of antioxidant activity. In addition, Reef Zooplankton� is enhanced to increase the bioavailability of important nutrients such as proteins, lipids, B vitamins, and other organic pigments, thus, corals expend less energy to derive the nutritional benefit. It is blended to contain proper ratio of fatty acids, carbohydrates, and proteins."