Filtration & Aeration

Pure water is important for the condition of aquatic plants, pond fish and micro-organisms. Even if a pond has been properly laid out, problems may arise, which upset the biological balance. For many ponds a filter brings relief.

Pressure Filters

The Pressure Filters can withstand high pressure, so they are ideal for ponds with a waterfall.

Biological Filters

The mechanical and biological operation of the filter materials, the possibility to treat the water simultaneously against floating algae and pathogens.

UV-C Unit

Velda has special building-in UV C Units.


Even when your pond is properly equipped situations can arise to disrupt the biological balance.

Surface Filters

A clear and dust-free water surface is a prerequisite for lovely appearance of the pond.


To obtain a good biological environment, in which fish and plants thrive excellently, it is necessary for many garden ponds to apply aeration in the…

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