continuous development of the Korallen-Zucht product line has produced this version of Pohl's Xtra Special which has a special blend of the most effective KZ additives for improved coloration. Designed specifically for pale corals and ultra low nutrient systems. Improves all types of color significantly as well as improves growth rates and coral vitality. One of the more popular products in the KZ line. Special blend of the most effective KZ additives known for improved coloration Contains coloring agents and amino acids Improves coral vitality within days Large improvements in coral growth Dosing: 1 mL per 25 gallons daily. Do not exceed recommended dosing amount.