Plant filter

Plant filter check

Simon van der Velde

Below we provide information on the different planting options for a plant filter. Here we do not focus on the technical aspects such as pumps, filters or water conditioners. In this way you can support the natural balance of the pond and enjoy it carefree all year round.

Simon van der VeldePond specialist and aquatic plant breeder

Brief summary

Minimum requirements for a self-sufficient, maintenance-free plant filter of about 10 m²

  1. pond substrate: 400 liters (20 bags)
  2. Oxygen plants: 96 oxygen plants
  3. water lilies: (optional)
  4. Marsh plants: 90 marsh plants
  5. aquatic plants: 90 aquatic plants
  6. Pond bacteria: 1 liter (1 bottle of BACTA CLEAR)

Read the full explanation below and view the products to create your own package, or choose the Complete Plant Filter Package directly and add the amount of substrate yourself using the step-by-step plan below.

1. pond substrate

Good preparation is half the battle and can prevent both problems and unnecessary costs. Therefore, write out the step-by-step plan and follow it carefully to ensure that you don't overlook anything. The right substrate plays a crucial role here. Although lava is cheaper, it is much less effective. The adhesion of bacteria to lava is 50 percent less efficient, and many pond plants do not root as well or at all in it. As a result, the filter may not function as well or at all. Wastes are then not or only partially removed from the water. A good quality substrate prevents these problems. Our pond substrate is low-maintenance and will last a lifetime, making it an excellent investment.

Simon van der Velde

Pond specialist and aquatic plant breeder

Simons advice for pond substrate

Make sure you have a layer of 15-20 cm of substrate in your plant filter.

  • Provide a minimum filter depth of 30 cm and keep 10 cm of water above the substrate. Although Big Bags of substrate are suitable for larger filters, many people find them impractical and therefore choose bags more often.
  • For an effective plant filter in which pond plants can root well, you need a minimum of 4 x POND SUBSTRATE - 40 liters. Every 1 m² requires 160 liters of substrate, which provides a 20 cm filter layer.

STEP ONE pond substrate - 40 liters

- Substrate 40 L covers 0.5 m² ↥ 10 cm
- Heavy quality for the best filtration
- Extra porous: optimal plant growth

Original price was: 50.00.Current price is: 39.95.

In stock

STEP ONE pond substrate - Big Bag - 1000 liters

- Substrate 1000 L covers 12.5 m² ↥ 10 cm
- Heavy quality for the best filtration
- Extra porous: optimal plant growth

 499,95

In stock

Step 2. Oxygen Plants

Want to prevent an algae explosion of floating or filamentous algae? Then make sure to place plenty of oxygen plants in your pond early in the season, around March or April. The top layer of water warms up quickly once the first rays of sunlight appear, causing algae to start growing. Existing ponds also need additional oxygen plants. The lower water layer, where oxygen plants overwinter, warms up later than the upper layer. This causes oxygen plants to grow slower than algae, which is a common problem in natural pools. No one wants algae in their pond, and certainly not in a swimming pond. Most problems in plant filters and swimming ponds are caused by a lack of plants. Therefore, always invest in extra low-growing oxygen plants such as Needleweed and parrot feather. These plants cover the water surface and prevent the sun from quickly warming the water. In addition, they convert carbon dioxide in the water into oxygen, which contributes to the death of algae.

Simon van der Velde

Pond specialist and aquatic plant breeder

Simons consulting oxygen plants

  • Always use parrot feather and Conifer as perennial oxygen plants.
  • Place 8 plants per 1 m², depending on how fast you want to see results.

Best option: benefit deals

parrot feather & Needlewort - 3 baskets - 1 - 2 sq. m.

- For 1 - 2 m²
- 12 plants
- Placement: -1 to -20 cm

Original price was: 60.00.Current price is: 49.95.

In stock

parrot feather & Needlewort - 6 baskets - 3 - 4 sq. ft.

- For 3 - 4 m²
- 24 plants
- Placement -1 to -20 cm

Original price was: 120.00.Current price is: 99.95.

In stock

parrot feather & conifer - 96 plants - 8 - 12 m²

- For 8 - 12 m²
- 96 plants
- Placement: -1 to -20 cm

 499,95

In stock

parrot feather & needlewort - 192 plants - 16 - 24 sq. m.

- For 16 - 24 m²
- 192 plants
- Placement: -1 to -20 cm

Original price was: 1,000.00.Current price is: 899.95.

In stock

Loose plants by species

Step 3. Water Lily

Want an ultimate and colorful plant filter? Then water lilies are essential. These hardy plants come in a variety of shapes and sizes, and are suitable for various depths. With their large leaves, they not only block sunlight on the water surface, but also prevent algae blooms and excessive warming of the water. You can already plant a water lily at a depth of 10 cm below the water's surface, creating a lively and healthy dynamic in your plant filter.

Simon van der Velde

Pond specialist and aquatic plant breeder

Simons advice for water lilies

A water lily thrives in as little as 10 inches of water and can then produce flowers. There is room for a water lily in almost any plant filter, with a minimum of 1 water lily per 0.5 to 3 sq. m.

Types water lilies

Steps 4 & 5. Marsh plants and aquatic plants

A swimming pond is an enhancement to any garden and is primarily intended for swimming. Often people find it less pleasant to have aquatic plants directly in the swimming area. However, aquatic plants are essential for a healthy swimming pond. Therefore, many swimming pond owners choose to have a separate plant filter with specific filter plants. This plant filter is separated from the swimming area, so that while swimming you are not bothered by the plants, but can enjoy the view of this flora.

The filtration of the water mainly takes place in this plant filter, which makes it a crucial part of the swimming pond. It is therefore important to add enough aquatic plants to the plant filter to keep the water clear and healthy. This way you can swim carefree and without risk of skin irritations. Always choose a combination of marsh plants and oxygen plants; they reinforce each other in purifying the water and adding oxygen to the pond.

Simon van der Velde

Pond specialist and aquatic plant breeder

Simons advice for Sumpfpflanzen

For an effective plant filter, plant at least 16 pond plants suitable for a plant filter per square meter. Choose both tall and low-growing varieties.

Sumpfpflanzen packages

Loose plants

Step 6. Pond bacteria

Finally, it is important to add a bottle of Bacta Clear to your pond water twice a year: once in the spring and once in the fall. This keeps your pond clear and balanced. Bacta Clear contains a mix of two types of bacteria that remove waste products from the water. This increases oxygen levels in the water, which in turn promotes pond plant growth. One bottle of Bacta Clear is suitable for ponds up to 20,000 gallons and is not harmful to people, plants or animals.

Simon van der Velde

Pond specialist and aquatic plant breeder

Simon's advice for Pond bacteria

Add bacteria to the plant filter twice a year: once in the spring and once in the fall.

BACTA CLEAR Pond bacteria

- Bacteria for 1,000 to 20,000 L
- 100% eco: clear water fast
- Safe for humans, plants & animals

 29,95

In stock

7. Extra tip: for when you have a deep pond

Pond Crate

In many water features, variation in depth is not considered. If you want to add a shallow area for plants, you can use special crates. These are stackable, making it easy to create a shallow area. Several smaller planters can be placed in one crate.

Simons advice for pond crates and pond plants

With 3 stacked pond crates you can create a -80cm deep pond in a -40cm zone for various pond plants. For example, put 3 baskets of oxygen plants like needleweed together with 3 baskets of irises to place a crate full of water purifying plants in your pond.

Pond crate - 3 pieces

- Dimensions: 60x40x16 cm
- For deep ponds
- Sturdy stackable

 49,95

In stock

Brief summary

Minimum requirements for a self-sufficient, maintenance-free plant filter of about 10 m²

  1. pond substrate: 400 liters (20 bags)
  2. Oxygen plants: 96 oxygen plants
  3. water lilies: (optional)
  4. Marsh plants: 90 marsh plants
  5. aquatic plants: 90 aquatic plants
  6. Pond bacteria: 1 liter (1 bottle of BACTA CLEAR)

Already have pond plants, but experiencing problems such as algae or murky water? Then check out all the packages and maintenance tips for a plant filter.

Simon van der Velde

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