Seachem Reef Advantage Strontium 300 g 10.6 oz

Brand new Seachem Reef Advantage Strontium 300 g 10.6 oz -Restores & maintains strontium to levels found in natural sea water. Strontium is utilized by corals in the same manner as Calcium & holds a similar importance in maintaining a vigorous level of growth. -Contains 30,000 ppm of ionic strontium -For aquarium use only -300g treats 1,500 gallons