We are here to help you select the best fish pond filters for your Koi pond.

All ponds should have biological filtration to provide good water quality for healthy fish and good appearance. Generally better pond filters mean higher cost, less maintenance, and better water quality. Ultraviolet Sterilizers are recommended for most ponds to insure the clearest water.

We have selected pond filters and pond filter combinations based on pond size to simplify the selection for you. These are guidelines based on average ponds. You cannot have too large a filter system for your pond. If in doubt purchase a larger size pond filter.

Pond Filtration System Recommendations for:

• * Ponds up to 700 gallons in size
• * Ponds up to 1,500 gallons in size
• *Ponds up to 2,500 gallons in size
• * Ponds up to 3,500 gallons in size
• * Ponds up to 5,500 gallons in size

The key to maintaining an outdoor pond is to use the correct outdoor pond filters, which will accommodate the size of the pond and keep the plants and animals within healthy. To choose the right filter for the job, it is important to understand how outdoor pond filters work.

Water filters are a simple sewage system unit that contains a sluice area where millions of benign bacteria reside. This pond filters are placed inside the pond, where water passes through and the bacteria breaks down the harmful toxins and contaminants that result from fish waste and other organic material that fall into the pond.

Because it is such a vital element to keeping your pond and the fish inside it healthy, it is important to check the water volume of the pond before purchasing the pond filter systems so you choose a size that will effectively disinfect the pond and, once installed, ensure that the water flows through the filter steadily and constantly for maximum sanitation.

Resource: http://www.doityourself.com/