Top 10 Best Seller – Clear Pond – Ponds can often be cloudy – after maintenance, after heavy rain, after a new filter/UV has been fitted. Clear Pond is a natural based flocculent that clumps fine particles together allowing them to sink to the bottom of the pond or be removed efficiently by a filter. Clear Pond rapidly leaves your pond with sparkling clear water. Contents 250ml, sufficient to treat 5,682 litres (1,250 gals).