Our Sludge Control Balls are a natural treatment to help reduce plant, animal and other debris. A build-up of untreated sludge at the bottom of a pond or water feature can allow dangerous chemicals including ammonia to form, making the water stagnate, stink and can ultimately be fatal to fish, plants, and other wildlife.
The Sludge Control Balls use natural enzymes to break down the waste, so it can be removed allowing your pond to stay clean, fresh and oxygenated. For best results use in temperatures between 10c - 25c.
Ideally, use at least three times per season, spring, summer, and autumn, or even more if the problem is severe. 1 pot can treat up to 1250 litres (275 gallons) and is easy and simple to use. Just add 100ml, including liquid from the tub (approx. 1/3 of the container). This will treat 420 litres (92 gallons) of pond water.
Sludge Control Balls work by releasing beneficial aerobic bacteria that break-down excess fish food, fish waste, organic plant materials and other detritus. The bacteria liquifies the waste, helping to reduce odours, keep your pond water less murky and reduce the build-up of toxins such as ammonia, nitrate and phosphate.