Filtration

   The filter protects both the pump and the aquatic life by removing impurities from the water.  There are two basic approaches to filtration: mechanical and biological. When combined and properly sized, they produce a healthy living environment for all of your plants and livestock!

  If you choose to keep livestock in your pond, then it is necessary to provide some type of filtration.   Of the two types of filtration, mechanical and biological, biological filtration is what will break down the toxic products of fish and plant waste.  This is accomplished through the use of bacteria. One type of bacteria use the Ammonia in the waste as a food source and excrete Nitrite. Another type of bactera then takes this nitrite and converts it into Nitrate. This is known as the Nitrogen Cycle. Now in moderate concentrations, 30-40 ppm, ammonia and nitrite become toxic to aquatic life. Nitrate on the other hand is much less toxic and concentrations in the 200+ ppm range are not uncommon, while the fish are no worse for wear. It is the Biological filter that provides a safe haven for these two distinct species of bactera.  It is a home where there is a large surface area for colonization as well as a constant food source.

Types of Filters

Small In-Pond Filters

OASE Modular In-Pond Filtration

  Medium and coarse filter pads are mounted side-by-side in a unit that attaches directly to an OASE pump. This in-pond filtration can remove suspended particulate matter as well as biological wastes.  The pores of the filter pads accumulate beneficial bacteria, which break down the toxic organic wastes. One pad can be taken out and cleaned whiles the others remain undisturbed.  More Modules can be added as needed.

Pondmaster In-Pond Filtration

  Pondmaster filters offer you an excellent filter for smaller ponds that do not require the more advanced pressurized biological systems.  They are compact and designed to be installed inside the pond with a submersible pump.  There are two different sizes to choose from with flow rates of 700 to 1800 GPH