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Pond CristalClear Duckweed Control by NT Labs removes phosphate, the nutrient responsible for nuisance plant growth, from pond water. It also causes all suspended particles in the water to clump together and fall to the bottom of the pond. Used regularly, NT Labs Pond CristalClear Duckweed Control will keep your pond water clear.
This product is harmless to plants and fish and does not affect bacterial filters.
Dosage: Use 10ml of CristalClear Duckweed Control per 182 litres of pond water. Product should be mixed with pond water in a clean bucket and then mixed well through the pond. Duckweed Control should be added to the pond every week for the first 2 weeks and every other week thereafter during the growing season. Where water is very badly affected by Duckweed the dosage may be safely doubled without causing harm to fish, pond plants or wildlife.