Supplement contains concentrated strontium. 10 ml of the product increases the strontium level by 2 mg/l (ppm) in 100 litres (27 US gal) of water. The recommended level of strontium in aquarium water is 5.00 – 15.00 mg/l (ppm). Causes serious eye damage. Keep out of reach of children. Use eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Immediately contact a POISON CONTROL CENTER or doctor. Dispose of contents/container in properly labeled waste containers.