Pond Filtration

Keeping your pond water clear and healthy involves more than just one piece of equipment. Different ponds need different solutions to managing waste, excess nutrients, and water clarity depending on factors such as size, stock levels, and even design.

On this page, you'll find a selection of our water quality solutions, along with specific categories to help you find the most suitable option for your pond filter needs.

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Help and advice on shopping for: Pond Filtration

Understanding pond water quality

In a garden pond system, waste builds up naturally with time. This waste comes from fish, uneaten food, plant debris, and other environmental factors. Managing waste is the key to maintaining stable water conditions and supporting the health of fish and plants.

The equipment works by:

  • Removing solid debris from the pond water
  • Supporting beneficial bacteria that breaks down harmful compounds
  • Helps to control algae and excess nutrients

Different pond benefit from different combinations of these solutions.

Types of pond filtration systems

Rather than one single solution, most ponds need one or more methods:

Pressure filters

These sealed units allow water to be pumped to higher levels, making them ideal for ponds with waterfalls or raised returns.

Browse our selection of pressure filter systems.

Box (flow-through) filters

These gravity fed filters utilise large volumes of filter media, making them well suited to large ponds with high stocking levels.

Explore our box filter options.

In-pond filters

These compact units are designed to sit inside the pond. They are typically used in small ponds, or where space is limited.

Try our in-pond system selection.

Koi pond filters

Ponds stocked with Koi require high capacity filtration due to the large amounts of waste produced by the species. Dedicated systems are designed to handle the increased demand.

Check our our Koi pond systems.

Additional equipment

Some ponds may benefit from other equipment, to be used alongside primary filtration:

UV Clarifiers

These units help to control green water caused by floating algae.

Shop our range of UV clarifiers today.

Pond Skimmers

Skimmers remove surface debris before it has a chance to sink and break down.

Browse our selection of skimmers designed to keep your water waste free.

Choosing the right set up

The most suitable approach depends on factors such as:

  • Water volume
  • Fish stock and feeding levels
  • Pump flow rate
  • Available space

Before selecting your equipment, we recommend calculating the water volume of your pond, and understanding how the filtration system works.

Use our pond volume calculator to get an accurate measurement.

Read our filtration guide here to choose the right equipment for your needs.

Frequently Asked Questions

Do all ponds need filtration?

Not all ponds require mechanical filtration. Wildlife ponds often rely on plants and natural processes, while fish ponds typically need dedicated equipment to manage waste.

Can I over filter a pond?

In most situations, high capacity systems provide more stability, especially in stocked ponds. It's always recommended to match your equipment to pond size and flow rate.