The ATI Element Manganese is a crucial supplement for maintaining optimal water conditions in reef aquariums. This liquid solution helps to replenish manganese levels which are essential for coral coloration and photosynthesis, particularly beneficial for SPS corals and zooxanthellae. Regular dosing can prevent issues such as pale or faded colors in corals due to low manganese concentrations caused by filtration methods like skimmers, carbon, ozone, and zeolite removal processes. The product comes in a 150 mL bottle, with each milliliter adding 4 µg/L of manganese per 100 liters (26 gallons) of water, making it easy to adjust levels precisely as needed for your aquarium setup.