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What do marsh plants do in a pond?
Marsh plants purify pond water through their roots and form the core of a marsh area or plant filter. They grow densely together and absorb large amounts of nutrients that would otherwise cause algae and sludge.
In addition, they provide:
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powerful natural filtration
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consistent water quality
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less sludge buildup
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a healthy habitat for aquatic animals
Marsh plants serve a functional purpose and play an active role in maintaining the pondās ecological balance.
Marsh plants versus other pond plants
Marsh plants function differently from oxygenating plants or Water lilies. They are particularly well-suited for plant filters and marsh areas, where they are planted in large numbers.
While oxygenating plants primarily work within the water column and Water lilies provide Water lilies , marsh plants provide intensive filtration through their root systems.
That is why marsh plants are essential for:
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ponds with a plant filter
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swimming ponds
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koi ponds
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ponds with high nutrient levels or silt
How many marsh plants do you need?
When it comes to marsh plants, thereās one golden rule: better too many than too few.
Too few marsh plants means:
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insufficient filtering
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stagnating growth
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increased risk of plant mortality
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no visible results
In practice, this often means you have to replant. Thatās more expensive than using enough plants the first time around. Using too many plants isnāt a problem. You can always easily remove any excess plants, though thatās almost never necessary.
More plants means:
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faster performance
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more stable water quality
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less chance of algae growth
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less maintenance down the road
That's why the rule is: more is better.
In what forms are marsh plants available?
To make this as easy as possible, we offer marsh plants in two varieties.
Individual marsh plants (pack of 15, 30, or 100)
This option is ideal if you:
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uses substrate
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is setting up a planted filter
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want to decide on the layout yourself
Individual plants offer maximum flexibility and are suitable for larger areas or filters.
Marsh plants in a basket (4 plants per basket)
These plants are sold in sets of four in a 19 Ć 19 Ć 10 cm basket.
This is ideal if you:
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you don't have a distinct marsh edge
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want to place right along the edge of the pond
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do not want to apply a substrate
You can place the baskets directly in the water, where they immediately provide a stable base.
Which option will you choose?
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Plant filter or marsh area with substrate?
ā choose individual marsh plants -
No border, no filter, or placing them right next to the pond?
ā choose wetland plants in a basket
No matter which variety you choose, always make sure you have enough of them. Thatās what determines the outcomeānot just the type of plant.
A well-designed wetland area acts as a natural filter and prevents many pond problems.
Simon van der Velde
Pond specialist and aquatic plant grower
Combine marsh plants with low-growing oxygenating plants
Marsh plants form the basis of the filtration process, but they are most effective when combined with low-growing oxygenating plants.
While marsh plants absorb nutrients through their roots, low-oxygen plants compete directly with algae in the shallow water. They limit sunlight and enhance the effectiveness of the plant filter.
This combination creates a stable system in which nutrients are absorbed before algae can grow.
Recommended low-growing oxygen-producing plants
Advantage
Anti-Algae Plants 2ā3 mĀ²
ā¢ 24 plants for 2ā3 mĀ²
ā¢ Controls and prevents thread algae
ā¢ Placement: 1ā20 cm
Anti-Algae Plants 4ā7 mĀ²
ā¢ 40 plants for 4ā7 mĀ²
ā¢ Controls and prevents thread algae
ā¢ Placement: 1ā20 cm
Hippuris
ā¢ 16 plants per crate (60x40x16 cm)
ā¢ Mature height: 30 cm
ā¢ Planting depth: 1ā20 cm
Oxygenating Plants Pond Baskets (Set of 4)
ā¢ 12 plants per crate (60x40x16 cm)
ā¢ Mature height: 30 cm
ā¢ Planting depth: 1 to 20 cm
Myriophyllum
ā¢ 16 plants per crate (60x40x16 cm)
ā¢ Mature height: 10 cm
ā¢ Planting depth: 1ā20 cm
Anti-Algae Plants 8ā12 mĀ²
ā¢ 84 plants for 8ā12 mĀ²
ā¢ Combats and prevents thread algae
ā¢ Placement: 1ā20 cm