Special rock can absorb ammonia and phosphates.
Natural mineral with high ion exchange capacity; alloy materials toxic to fish as ammonia or nitrates and phosphates, decomposition products and other environmental pollutants.
Ideal substrate for colonization of microorganisms, packaged in convenient pouches.
for a long-lasting treatment of 'water, hang all' inside of the pond from the spring.
4 liters (2L bags) treat up to 5,000 liters of 'water.
10 liters (5L bags) treat up to 12,500 liters of 'water.
Replace every 6-8 weeks