Algae Control
Controlling and Preventing Algae in the Pond
100% natural with oxygenating plants and Pond bacteria
Why Your Pond Turns Green
Is the water getting warmer? If so, everything in the pond will grow faster.
If there aren't enough plants, substrate, and bacteria, nutrients remain in the water.
Algae consume this food the fastest and take over the pond.
The 2 most common types of algae
Thread algae
Green tendrils growing on plants, rocks, and along the edge of the pond.
Floating algae
The water turns green and murky, as if it were pea soup.
The Solution: Algae Control Kit
Oxygenating plants and bacteria absorb nutrients before algae do. Choose the package that matches the volume of water in your pond.
Algae Control Kit400
• Clarifies water and prevents algae
• Contains 12 hardy oxygenating plants
• For ponds ranging from 100 to 400 liters
Algae Control Kit1.250
• Clarifies water and prevents algae
• Contains 21 hardy oxygenating plants
• For ponds ranging from 500 to 1.250 liters
Algae Control Kit3.000
• Clarifies water and prevents algae
• Contains 46 hardy oxygenating plants
• For ponds ranging from 1.500 to 3.000 liters
Algae Control Kit6.000
• Clarifies water and prevents algae
• Contains 82 hardy oxygenating plants
• For ponds ranging from 3.500 to 6.000 liters
Algae Control Kit10.000
• Clarifies water and prevents algae
• Contains 132 hardy oxygenating plants
• For ponds ranging from 6.500 to 10.000 liters
Are there a lot of thread algae or bare spots in the marsh area?
Plant low-growing marsh plants in baskets up to a depth of 20 cm. They thrive in the shallow areas where algae form and help control algae growth there.
Anti-Algae Plants 2–3 m²
• 24 plants for 2–3 m²
• Controls and prevents thread algae
• Placement: 1–20 cm
Anti-Algae Plants 4–7 m²
• 40 plants for 4–7 m²
• Controls and prevents thread algae
• Placement: 1–20 cm
Anti-Algae Plants 8–12 m²
• 84 plants for 8–12 m²
• Combats and prevents thread algae
• Placement: 1–20 cm
Have you added POND CARE yet?
Then choose the Oxygenating Plants Package: low-growing oxygenating plants in baskets, plus individual oxygenating plants to place directly in the water.
Oxygen-Producing Plants Package400
• Clarifies water and prevents algae
• Contains 11 hardy oxygenating plants
• For ponds ranging from 100 to 400 liters
Oxygen-Producing Plants Package1.250
• Clarifies water and prevents algae
• Contains 26 hardy oxygenating plants
• For ponds ranging from 500 to 1.250 liters
Oxygen-Producing Plants Package3.000
• Clarifies water and prevents algae
• Contains 70 hardy oxygenating plants
• For ponds ranging from 1.500 to 3.000 liters
Oxygen-Producing Plants Package6.000
• Clarifies water and prevents algae
• Contains 130 hardy oxygenating plants
• For ponds ranging from 3.500 to 6.000 liters
Oxygen-Producing Plants Package10.000
• Clarifies water and prevents algae
• Contains 228 hardy oxygenating plants
• For ponds ranging from 6.500 to 10.000 liters
Enough plants, but still not sure?
POND CARE is the finishing touch. Pond bacteria break down leftover food so algae have nothing left to eat. For ponds that are already well-planted but just need that final boost.
What others are saying
More than 10,000 pond enthusiasts have already joined
“Within two weeks, most of the green algae had disappeared. Those loose oxygenating plants work especially well—you just put them in and they get to work right away.”
— Marie Bernard
“My pond had turned completely green in the spring. After adding this kit, the water slowly cleared up again. The combination with the bacteria seems to work particularly well.”
— Luca Ibarra
“Convenient kit. You don’t have to plant the plants; just place them loose in the water. After a few weeks, there was clearly less algae in the pond.”
— Elena Silva
“Ourswimming pond was always cloudy and full of silt after winter. After doing some research, I added POND CARE to the plant filter in the spring. After a month and a half, the water was crystal clear, and our children and we are once again enjoying the pond to the fullest!”
— Anna Vermeulen
“Every spring, algae would appear as soon as the weather got warmer. I started using POND CARE in March, and the water has stayed clear ever since. Maintenance is minimal, and the fish are swimming around happily. I’m pleased with the results.”
— David Müller
Algae form when there aren't enough plants.
Add more oxygenating plants, and they will absorb the nutrients before the algae do.
This will keep your pond free of algae.
Frequently Asked Questions About Algae Control
The oxygenating plants begin absorbing nutrients immediately. The bacteria help stabilize the water within a few days. It usually takes a few weeks for the biological balance to be restored.
No. Just place the oxygenating plants directly in the water. That way, they can immediately absorb nutrients that would otherwise go to the algae.
Yes. The plants and bacteria are completely natural and safe for fish, frogs, salamanders, and other pond animals.
If there is a lot of thread algae, it’s a good idea to remove some of it first. This allows the plants to get more light and helps the pond recover more quickly.
INSTA CLEAN breaks down bottom sludge, reducing the nutrients available to algae. BACTA CLEAR bacteria that break down suspended debris and clarify green water.
When the pond has enough plants and remains biologically balanced, algae are much less likely to return. Regular maintenance helps maintain this balance.
Would you like some more helpful tips for a healthy and clear pond?
In *Simons Pond book you Pond book spot common mistakes and discover exactly how to properly construct and plant your pond. It includes a simple planting plan that you can use right away.
Save at least €200 on a small pond and thousands of euros on a large pond.