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A successful garden pond depends on three things: a lasting watertight seal, water that circulates and is filtered, and well-fed fish. This page brings together everything you need, from construction to maintenance. EPDM pond liner moulds to any shape and withstands UV for a long time, HDPE liner is stiffer and cheaper, and the raised pond goes in without any digging.
The pump passes the entire pond volume through the filter in one to two hours, and a UV-C steriliser placed after the filter destroys the suspended algae that turn the water green. In summer, an aerator makes up for the oxygen that warm water holds less well. Bacteria, clarifiers and algae treatments correct imbalances, and the plants in the Aquatic plants department take up the nitrates that algae feed on.
A pond intended for fish should have an area at least 80 cm deep for the winter. The article Overwintering your garden pond will help you choose.














