MICROBE-LIFT / Complete is a product ionically balanced with trace element in the reef aquarium and will also create a buffer system. A pH between 8.0 and 8.3 and a hardness between 2.9 and 4.0 mEq / l (of 8 to 11 ° dKH) is essential in marine aquariums and reef and calcium levels should be between 400 and 450 mg / l. Test the levels of calcium and hardness and calibrate them to suit your needs. Do not add more than 0.5 ml per gallon (= 3.79 liters) every 12 hours. Add daily calcium and this product for optimal results. If magnesium levels should be low, use MICROBE-LIFT / Magnesium Supplement Liquid. They recommend regular water changes. It is recommended to use all products for the MICROBE-LIFT line of reef aquariums to integrate all the minerals simultaneously whose levels to be too low. indications: Always shake well before use. Add daily 10ml (2 teaspoons) per 38 l in the tank area with the highest flow, until the desired hardness is reached. Never mix with calcium or magnesium, but administer them separately in the tub. It could muddy the water temporarily, but returns quickly clear.