Careers
EM pond care for your garden pond
Use pond cleaners containing Effective Microorganisms to clarify your pond water.
These are our best-selling products for treating cloudy pond water
Your benefits with multikraft
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Clear water in your pond
Effective microorganisms help break down sludge, thereby contributing to a clean pond. -
Perfect conditions in the water
EM Pond Care promotes plant growth and reduces algae growth, helping to stabilize the ecological balance in your pond. -
Gentle pond care
Our pond care products allow for targeted maintenance of the water and are designed for use in ponds.
Our Top 10 tips for pond care
- Regularly remove leaves and algae from the water.
- Clean your filter regularly according to the manufacturer’s instructions.
- Trim aquatic plants in early summer and, especially, in the fall after a period of heavy growth.
- Ensure a gentle current, as moving water absorbs more oxygen.
- Feed your fish in moderation to prevent uneaten food from accumulating.
- Remove sludge and debris with a pond vacuum.
- Cover your pond in the fall to prevent a large amount of fallen leaves from entering it.
- Provide natural shade for your pond.
- Choose a sunscreen that poses no risk to aquatic organisms (e.g., bioemsan Sunscreen SPF 30).
- Opt for natural pond care with Multikraft Pond Clear.
- Regularly remove leaves and algae from the water.
- Clean your filter regularly according to the manufacturer’s instructions.
- Trim aquatic plants in early summer and, especially, in the fall after a period of heavy growth.
- Ensure a gentle current, as moving water absorbs more oxygen.
- Feed your fish in moderation to prevent uneaten food from accumulating.
- Remove sludge and debris with a pond vacuum.
- Cover your pond in the fall to prevent a large amount of fallen leaves from entering it.
- Provide natural shade for your pond.
- Choose a sunscreen that poses no risk to aquatic organisms (e.g., bioemsan Sunscreen SPF 30).
- Opt for natural pond care with Multikraft Pond Clear.
Excessive algae growth and cloudy water are among the most common problems in liner ponds and biotopes. To keep your water clear in the long term, it’s best to use Effective Microorganisms in your pond. These support the pond’s natural cycles and can help reduce algae growth and cloudy water. We specifically recommend a combination of our products: Pond Clear, EM Ceramic Powder, and Zeobas Ultrafine. With our calculator, you can quickly determine the correct dosage for EM pond care.
Proper water maintenance in a liner pond
In natural ponds, just as in fish ponds, algae blooms and sludge buildup are common. This is sometimes due to excessively high nutrient levels in the water and can become harmful to the health of the pond. With our tips and Effective Microorganisms, you can support the natural processes in your pond:
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It’s best to mix our pond care products Pond Clear and EMb Starter together and dilute the products with water at a ratio of 1:5 to 1:10, depending on the application method (sprayer, watering can, pump, etc.).
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Then apply the mixture once or twice a year, depending on the thickness of the sludge.
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In the first year, however, it has proven effective to perform three to five treatments (at intervals of about 4 weeks), depending on the algae load or sediment thickness.
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Water maintenance can be performed in the pond year-round, provided the water temperature does not fall below 5 °C. Ideally, you should begin treatments in the spring or fall.
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These application instructions apply equally to natural ponds and fish ponds.
Rely on effective microorganisms in your natural pool
In a natural pool, nutrients are bound by the formation of a biofilm within the filter media. However, as the biofilm continues to grow, the filter media becomes clogged and filter performance decreases. Normally, water circulation is then shut off for a few days; the biofilm dies off and is removed from the filter media by backwashing. Afterward, treatment with Pond Clear and gray EM ceramic pipes promotes the formation of a new biofilm.
However, some natural pools do not have the option of backwashing. During the swimming season, monthly additions of Pond Clear help break down nutrients in the filter media and prevent the filter area from clogging up again quickly. In winter, the water should be drained from the filter area.
Recommended Use of Our Products in Natural Pools
How to use Pond Clear correctly:
Use 1 L of Pond Clear per 10,000 L of water (= 10 m³).
How to Use EM Ceramic Pipes Correctly:
- Dosage: Always use the specified amount of gray EM ceramic pipes together with 35-mm EM ceramic pipes.
- Application: Distribute the EM ceramic pipes in bags or on strings in the filter or in areas where water flows through
Questions and Answers
In this FAQ section, you'll find specific information and answers about pond and water care. If you can't find what you're looking for here, feel free to check out our blog or fill out our contact form—we'd be happy to help.
Yes, Pond Clear can also be used in ponds with fish. Do not begin working on the pond until the water temperature reaches 10 °C, when the fish are active. Do not feed the fish until the temperature is consistently 12 °C, as they cannot digest the food in cold weather. Otherwise, uneaten food will sink to the bottom, begin to rot, and promote algae growth and fish diseases. The use of Effective Microorganisms supports the natural processes and the biological balance in the pond.
Depending on the size of your pond, it will have more or less of a need. You can use our calculator to determine the specific needs of your pond.
Treatment can be performed at any time. Especially in the spring and fall, you should prepare your pond for summer or winter.
Pond treatment can be performed when the water temperature reaches 5°C or higher.
Yes, treating your pond in the fall after completing your final maintenance tasks will help it withstand the cold season.
Yes, the UV lamp should remain turned off for the duration of the treatment.
Yes, the filter system should continue to be cleaned regularly according to the manufacturer’s instructions. Pond Clear supports the natural processes in the pond but does not replace mechanical filtration and maintenance. A well-maintained filter system helps remove suspended particles and sediment from the water and maintain water quality.
Aquatic plants help maintain a stable balance in the water. Especially during their growth phase in the spring and summer, they absorb nutrients from the water that would otherwise be available to algae. In the fall, however, they should be pruned back thoroughly so that dead plant material does not begin to rot and release the stored nutrients back into the water. This allows the plants to grow healthily again in the spring.
A natural pool usually does not contain any plants. Therefore, you should use Pond Clear only in very small amounts. 1 liter per cubic meter of pond water is more than enough. You can also improve water quality by using EM Ceramics.
Only EM Ceramic should be used in the pool.
Blog
Further insights into the topic of EM and ponds
Pond
Finally getting clear pond water: Here's how it works
Pond and biotope owners know the feeling: you're looking forward to your first dip in the cool water, but nasty floating algae or annoying sludge thwart your plans: cloudy, greenish water is anything but inviting. In this blog post, we'll show you how to get your pond water clear again or successfully prevent discoloration in the first place!
Beginner
10 minutes reading time
