Potassium is an essential element required in metabolic processes, protein synthesis, and growth of corals and macroalgae. In systems supported with nitrogen and phosphorus supplementation, potassium utilization rates may be increased. Supplementing with Reef Potassium provides a targeted means of increasing potassium concentrations effectively without also adding phosphate or dissolved organics. In many reef aquariums, potassium supplementation can enhance coral and macroalgae growth and color particularly red and pink colors in corals. Reef Potassium is ideally suited for use with an aquavitro sentia dose doser to maintain potassium at consistent concentration based on your aquarium\’s unique demand but is easily dosed manually as well. Ideal potassium levels will vary but generally range from 380 – 400 mg/L potassium. Reef Potassium contains 10% elemental potassium. Use Reef Nitrogen and Reef Phosphorus to maintain optimal nitrogen and phosphorus levels. Directions: BeginnerUse 1 cap (5 mL) per 160 L (40 US gallons) twice a week or as needed to maintain desired potassium levels. AdvancedThe beginner dose raises potassium by 3 mg/L. To target a specific potassium level, increase dose according to the following formula: 0.01vn=m where v= volume of tank in liters, n=desired potassium increase, and m= volume of product to use in ml. For example, to raise 160 liters by 3 mg/L potassium you would use 0.01*160*3 resulting in 5 mL to dose. For reference: 1 US gallon=3.8 L.