A well-kept garden pond is a highlight in the garden. But especially in summer, algae quickly forms and spoils the beautiful picture. In this article you will learn how UV light works against algae and which types of ponds UV filters are suitable for.
How does UV light work against algae?
Ultraviolet light sterilizes the water by killing algae, germs and fungi. ItdamagestheDNA of the microorganisms so that they can no longer reproduce. To combat algae, the water is passed through a UV-C filter past a UV lamp.
What are the advantages and disadvantages of UV light for algae control?
Killing algae with a UV clarifier makes the water in the pond or aquarium clearer and reduces the germ load with pathogens. This creates a he althy environment for fish and aquatic lifewithout the use of chemicals This process has been used for over a hundred years. However, UV clarifiers only work on the water that flows past them. However, many algae and bacteria settle on the ground and on plant surfaces. Absolute sterility is not achieved, only a reduction.
What do I have to consider when fighting algae with UV light?
- When choosing the UV filter, make sure you choose the right size for the water volume of your pond.
- The filter system should not be too large either. Otherwise the water flows past the UV lamp too quickly and cannot adequately kill algae and germs.
- To protect eyes and skin from sunburn, a UV lamp with a circuit breaker should be used.
- For a reliable effect throughout the entire pond season, the UV lamp should be replaced annually, as the light output decreases over time.
Which algae does UV light help against?
Floating algae is very difficult to remove from a garden pond. While thread algae can be easily “fished”, this is more difficult withfloating algae. They cause the typical greenish-cloudy pond water. A UV-C filter effectively combats exactly these algae.
For which ponds is UV light against algae suitable?
Newly created ponds whose ecosystem has not yet been fully established are particularly at risk from heavy algae contamination. If the water is also very rich in nutrients, algae spread quickly. A UV filter that sterilizes the water with UV light is an environmentally friendly way to permanently get rid of algae. This system is therefore particularly suitable forKoi and fish ponds as well as swimming ponds or mirror ponds.
Tip
A UV filter needs a few days to combat algae
If your garden pond is severely affected by an algae bloom, a newly installed UV lamp will need around 14 days to clear the water. If your pond is not clear again after this time, the filter system and UV lamp are too small and must be replaced.
