Various minerals exist in Nature called zeolites. After extensive laboratory research, PRODAC have chosen ZEOLITH because of its high absorption power and its porosity, which gave the best results in helping the efficacious establishment of bacteria of the Nitrosomonas group.

USE: Using a sufficient layer of ZEOLITH in the pond filters has lead to the efficient absorption of nitrites, nitrate and ammonia, thus improving the biological balance of the pond. 5 kg pack sufficient to filter a pond of 7000 litres. We recommend changing it every 3 months.