Freshwater Products

Sander Freshskim Protein Skimmers

Sander Freshskim 300	Sander Freshskim 200

Protein skimming, or foam fractionation, is the process by which dissolved and particulate organic carbons are removed from a liquid, in this case the pond water, by adsorbing them onto the surface of fine bubbles rising in a closed contact column against a counter-current water flow. The bubbles burst and form stable foam at the top of the water column and the accumulated organic wastes are discharged from the column along with the foam produced The removed substances are called "surfactants" because they are surface active or "charged".

Protein skimming is further enhanced by the application of ozone into the air mixture, which further oxidises and breaks down complex organic compounds as well as providing a degree of disinfection, depending on the quantity used.

Sander Freshskim freshwater skimmers are specially developed and tested for Koi ponds and other freshwater applications making them the ideal skimmer for a freshwater pond/tank. These skimmers remove proteins before they are decomposed to toxic compounds, and turbidity and algae will also be removed. Skimming is achieved by bubbles produced by airstones, not a venturi, and therefore a suitable air pump or compressor is required.

In combination with ozone, these freshwater skimmers will considerably increase water quality.