Strong sunlight during the warm season enormously increases the growth of floating algae and quickly leads to green cloudiness, so-called "green water". This cloudiness can adversely affect the water quality in a pond.
sera pond crystal combats the algae effectively and reliably. The algae cells coagulate and then can easily be collected and removed by the filter. A special active agent ensures lasting results.
Fish and plants will also do well once visibility and water quality of the pond are restored. There will be no obstacles for unspoiled pond joy in summer anymore.
Tip: Using fine filter wool, for intance sera filter wool, visibly accelerates the effect. sera pond algokill is particularly well suited in case of thread algae growth.