Fast-Acting Pond Clarifier, 1 Gallon for Large Ponds Supernatural InstaClear in the 1 gallon size provides rapid clarity restoration for large ornamental ponds or multiple clarity events in a single season. The flocculant-based formula clears suspended particles within 24 to 48 hours and covers ponds up to 4,000 gal (15,000 L) per treatment. At gallon volume, cost per treatment drops significantly compared to smaller bottles. Large-Scale Emergency Clarity Large koi ponds and heavily stocked water gardens can turn cloudy faster than smaller systems, and have proportionally more water to treat. The 1 gallon format ensures you have enough product to treat a large pond fully in one application without rationing. It is also practical for pond professionals treating client ponds on service calls, where having adequate supply on hand is essential. Coverage Ponds up to 4,000 gal (15,000 L) per treatment Format Liquid concentrate Volume 1 gal (3.78 L) Results Timeline 24 to 48 hours Safe For Koi, goldfish, aquatic plants, wildlife How to Use Apply with the filter and pump running. Pour into the skimmer or distribute across the pond surface. Results are typically visible within 24 hours with full clarity in 48 hours. Scale dose to pond volume per label directions. Follow with bacterial treatment to address underlying nutrient levels and reduce future clarity events. Cap tightly and store in a cool location between uses. Ideal for large koi ponds, commercial water features, and pond professionals needing rapid-response clarity treatment for systems from 2,000 to 4,000 gal (7,600 to 15,000 L).