Salifert Reef Boron, 250ml
Hard. Directions: Shake before use. Use a boron test (Salifert’s Boron Profi-Test) to measure the boron concentration. This supplement should be dosed when boron concentration is lower than 4.4 mg/L (ppm). Each 10 ml per 100 L (25 gallons) will increase the boron concentration by approx. 0.25 mg/L (ppm). It will take approx. 20 hours before the supplemented boron is measurable! Keep out of reach of children. In case of contact with eyes rinse with plenty of water. Only for aquarium-hobby use. Not for human consumption (directly or indirectly)!