Shake well before using. Use one inner capful (7 ml) for every 110 L (30 gallons*) twice a week or as required to maintain coral growth.
Note: The aquavitro cap offers multiple dosing solutions depending on the size of your system. Each inner cap thread is approximately 2 mL. The inner cap contains 7 mL, while the outer ring contains 28 mL (35 mL when both are filled to the level of the inner cap.) When filled to the top, the cap contains 49 mL.