Algae in the pond: causes and solutions

Algae in the pond are a common problem for pond owners who want clear water and healthy plants. Instead, the pond can quickly turn into a murky body of water in which fish are only visible near the surface. This phenomenon occurs not only in garden ponds, but also in swimming ponds and reduces the enjoyment of swimming in the pond. There are many reasons for this: an unsuitable pH value, too many or too few plants and the wrong fish stocking or amount of food.

Ponds need intensive care

A self-regulating pond that remains in balance is difficult to achieve and requires intensive care. Special pond plants can help, Combat algae in the pondas well as regular cleaning of the filters. The use of chemicals is not recommended as they can affect the entire ecosystem of the pond. Without a natural fresh water supply, such as from a stream, the oxygen supply and water mixing must be ensured by other means. A fountain with integrated filter pads can help here, but cleaning the filters is often cumbersome and ineffective against floating algae, blue-green algae or filamentous algae.

Algae in the pond: Effective pond cleaning with UV-C light

An effective method for preventing algae blooms is the UV-C disinfection . This involves pumping the water through an external circuit containing a UV-C lamp. This lamp destroys the DNA of the algae cells, preventing them from reproducing and causing them to die. An upstream suspended matter or sand filter removes the dead material from the water. This process protects plants and fish while keeping the pond water clear and clean.