Description
Aquipond Nautex is coccolith chalk, also known as Champagne chalk: a natural calcium carbonate (CaCO₃) of sedimentary origin, 60 million years old. It regulates pH and dissolved oxygen and slows the build-up of organic sludge in ponds and lakes.
How does Nautex work?
Made from marine coccolith chalk, Nautex works without mechanical dredging, in three complementary ways: biologically, it stimulates the aerobic bacteria that break down sediment; physically, it flocculates fine suspended particles; chemically, it acts as a pH buffer, limiting acidification and promoting oxygenation at the bottom of the pond.
Illustrative diagram. Results depend on sludge depth, water volume and the organic load of the pond.
Benefits for your pond or lake
- Less sludge without dredging: aerobic bacteria break down the sediment.
- More oxygen available for aquatic wildlife.
- pH and odours under control: more stable, more pleasant water.
- More transparent water thanks to the flocculation of suspended matter.
- Greater phytoplankton diversity: a better-balanced ecosystem.
How to use
Preparation: mix 50 kg of powder in 100 L of water and stir until you get a smooth white liquid, known as "Nautex milk".
Application: on small areas, spread with a watering can, covering the surface evenly; on large areas, use a motor pump from the bank or from a boat.
Ideal periods: spring (March to May) and autumn (September to November). Avoid periods of frost and very hot weather.
What dose for my pond?
Nautex is dosed according to the surface area of the water: 80 to 100 g/m² for annual maintenance, to keep the balance and prevent sludge build-up; 150 to 200 g/m² for corrective treatment, for a silted-up or degraded pond.
| Pond surface area | Annual maintenance | Corrective treatment |
|---|---|---|
| 50 m² | 4 to 5 kg | 7.5 to 10 kg |
| 100 m² | 8 to 10 kg | 15 to 20 kg |
| 250 m² | 20 to 25 kg | 37.5 to 50 kg |
| 1,000 m² | 80 to 100 kg | 150 to 200 kg |
| 5,000 m² | 400 to 500 kg | 750 to 1,000 kg |
Quantity guide: 5 kg for 30 to 50 m²; 25 kg for 150 to 250 m²; 150 kg for 1,000 m²; 750 kg for 5,000 m².
- 5 kg bucket: 50 to 62 m² for maintenance, 25 to 33 m² for corrective treatment.
- 10 kg bucket: 100 to 125 m² for maintenance, 50 to 66 m² for corrective treatment.
- 25 kg bag: 250 to 312 m² for maintenance, 125 to 166 m² for corrective treatment.
- 400 kg half pallet: 4,000 to 5,000 m² for maintenance, 2,000 to 2,666 m² for corrective treatment.
- 900 kg pallet: 9,000 to 11,250 m² for maintenance, 4,500 to 6,000 m² for corrective treatment.
Good to know
- Widely used by fish farmers, fishing lakes and pond managers.
- Chemical formula: CaCO₃ (calcium carbonate).
- Non-toxic to humans and fish.
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