Iodide 53+ is a concentrated iodide supplement for measured correction in reef aquariums. Dose only for an iodine deficit confirmed by a reliable test. Standard ICP testing measures total iodine. The formula contains 8 mg iodide per mL; 1 mL per 25 L (approximately 6.6 US gallons) raises iodide by approximately 0.320 ppm. This is a concen
