Algae in the garden pond - prevent & avoid

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It is summer, the garden is in full bloom and your own biotope, the garden pond looks beautiful from afar. But if you come closer to the pond, the water seems to be clouding. Algae! The whole pond is full of what to do?
Algae in the garden pond - a problem many hobby gardeners. In most cases, at the time described only chemical agents that improve the algae bandages and thus the water quality help. But you can also take precautions. With a few tricks and small but important factors that you should consider, you can successfully prevent algae growth in the garden pond.
Make for shade
Especially in summer, there are optimal conditions for algae. The fish are the most active and produce many nutrient-rich waste products, the sunlight warms the water increasingly. Create shade with small trees or shrubs. The pond should never be fully illuminated for more than 7 hours a day. Less sun reduces the growth of algae significantly.
More floating plants
Those who have a very sunny location may also reduce the exposure by planting more floating plants such as water lily species, frog bite, and lotus and aquatic plants.
Even fast-growing aquatic plants and plantings at the pond are recommended because they need plenty of nutrients for their rapid growth and thus deprive them of the algae.
Feed fish consciously
Dry food also contains many nutrients that dissolve when left in the water for too long, which in turn positively affects the growth of algae. Feed only what the fish really eat in the first 5 to 10 minutes.
Water tests can provide information
To determine the quality of the water, water tests using test strips, which can be bought in specialized stores, give information. As a guideline for the ph-value 6-7 is given. The water should be nitrate. Depending on the result, you can use care products for the pond.
Whatever you do against the algae. It is important that you do it early. You will also find suitable care products for the pond and algae in the garden retailer. You can ask questions about the garden pond in the garden forum.
Natural combat
Blue or green algae can be fought with water fleas. They feed on the small algae. However, water fleas are once again eaten by fish. The method works best when there are no or only a few fish in the pond. This is how the biological balance recovers quite quickly.
Aquatic plants ensure a good pond water. The more water crops in a pond, the better the water quality. Of course, not too many fish should live in the pond and you must not feed too much!
Regular fishing is also a good way to improve water quality. You can compost the algae.
Remove Mulmschicht! Fish feces, dead plant remains and the like accumulate on the bottom of the pond over time. This is extremely nutritious.
Also, the plants must be regularly cut back, split and replaced. They are not planted in garden soil, but are special substrates and best in plant baskets, which facilitates the work immensely.
Mechanical combat
With a pond sludge sucker you can remove nutrient-rich deposits on the bottom of the pond.
Cover pond in the fall with a net that leaves can not fall into it.
Skimmer absorb the water surface, so that pollen and the like does not become a problem.
UV light against suspended air - A UVC pond clarifier contributes a lot to the quality of the pond water. The ultraviolet radiation destroys the genetic information of the algae. They can not multiply anymore. The light also causes the algae to clump together. A mechanical filter then filters out.
Chemical control
Mineral binders (phosphate binders) help to clarify the water. Chemical processes bind the nutrients in the water. So they can not be taken up by the algae, but of course not from the aquatic plants.
Flocculants ensure that the algae clump together. They can then be filtered out through the pond filter or the landing net. The funds are safe for fish and plants.
For a pond to work well, there is a lot to consider in the system. The location has to be right, the location, the size, the depth, the surroundings, all in all. If all of this is optimal, there are usually no major algae problems, and if you do, you can easily fix the problem.

Video Board: How to Control Pond Algae - Ask #39.

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