sera Pond UV Blocker

• reduces the UV light transmission of the pond water
• blocks UV radiation and thus reduces cloudiness (green water)
• inhibits warming by means of shading, especially in shallow water zones
• natural humic substances condition the mucous membranes of the fish
• ideal for use in summer or in a sunny location

Excessive sunlight can represent a threat to the pond ecosystem. Ornamental fish ponds and natural ponds with high levels of sunlight (UV-A, UV-B) or large shallow water zones can quickly become warm and cloudy. Pond inhabitants often react with stress to the light intensity and, in the worst case, can suffer a kind of sunburn. For this reason, a pond should ideally be designed so that at least a third of its area is in the shade. In natural ponds, it is a particular challenge for pond owners if they do not want to use algaecides or a filter system.

Pond UV Blocker reduces UV light transmission due to concentrated humic acids and, when used regularly, ensures natural clarification of the pond water. Goldfish, Koi and also native fish species benefit from the shading effect, so their stress levels are reduced. The humic substances contained in Pond UV Blocker condition the sensitive mucous membranes of the fish and promote their well-being.