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NATURAL FORMULA: All-natural pond treatment that effectively breaks down waste and promotes crystal clear water conditions. 100% safe, impossible to overdose. TREATMENT CAPACITY: Each dose effectively treats up to 40,000 litres of pond water, ensuring comprehensive coverage for most pond sizes WASTE MANAGEMENT: Actively breaks down organic waste, sludge, and debris that can cause cloudy or murky water conditions. Please note that it does not clear green water. We recommend UV-C filters to eradicate green water. NITROGEN CYCLE: Enhances and supports the biological filtration process by boosting the nitrogen cycle in your pond. Our HERONS Crystal Water Pond Bombs contains fast-acting, live bacteria. WATER CLARITY: Creates and maintains crystal clear water conditions whilst supporting a healthy aquatic environment