Different Types of Pond Filters – How to Choose

Pond Filters are maintenance equipment that is necessary to keep ponds clean. They break down the bacteria and other waste material generated by life forms such as fish and water plants.

Without Pond Filters, this waste matter could make the water toxic. A toxic pond, although clear, will make it unlivable for fish.

An algae problem will be addressed by one of these filters. They also clean out debris from the pond water.

A basic knowledge of pond filter types will help you choose the right one for your pond.

The types of Pond Filters are:

Biological pond filters – these make use of beneficial bacteria that is placed inside the filter.

In a nutshell, these types of filter merely provide a home for the good bacteria.

Skimmer filters – these remove dirt and debris from the water. Surface dirt and suspended dirt are its specialty.

These skimmers are ideal for use with pond pumps and as pre-filters for biological and mechanical type filters, as they prevent clogging due to fallen leaves, cut grass, and the like.

Mechanical pond filters – strains the water and traps debris. Used in tandem with water pumps, it also functions as an aerator.

Can be installed under water (submerged) or out of water (external). Mechanical filters can be further classified into pressurized pond filters, back-flushable pond filters, and magnetic pond filters.

Pressurized filters are the most popular for small ponds. These are then installed in between waterfall features.

A more natural method is to create a balance in the pond so that the plants can do the filtering.

For this to happen, about 50-70 % of the backyard pond must be populated with beneficial water plants. The naturally occurring bacteria in the roots of these plants will then act as Pond Filters.

A rudimentary list will include:
Water lilies
Waterfringe
Duckweed
Hornnut
Elodea

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