For water suitable for fish and plants: cleaning bacteria for the degradation of biological pollutants in ponds (proteins, ammonium/ammonia, nitrites).Easy to use: calculate requirements, mix with pond water in a watering can, distribute evenly over the entire pond.Healthy pond water: elimination of excess nutrients by degradation of biological waste.Prevention of fish losses and algae growth.Included in delivery: bacteria for self-purification, BactoPond. Dosage: 40 ml per 700 to 800 l of pond water.