Each capsule contains 130 mg of strontium. This allows you to control the quantity of Iodine you are adding in your tank. In a reef aquarium, the strontium diminishes proportionally with the calcium, so you can gauge the strontium demand by examining the calcium rate. 6 ampoules - For Reef Aquarium Use
Instructions: Average dose: One capsule per 400 liters every week.
Keep away from children. Avoid contact with skin and eyes.