POND FILTRATION Pond filtration is another important part of raising koi. It is almost impossible to maintain proper water quality without a good filter. You might think of the filter as being the heart of your koi pond. If it is strong and healthy the whole pond will be also. If you already have a filter that is working well you might want to move on to the next section. If you are designing a new pond, or if your present filter is too hard to maintain or is not performing well you should consider the information in this section. Filtration – Why do you need a filter? Provide clear and healthy water. Mechanical – clear water Biological – healthy water UV light Correct pump – need to turn over water x3 Easy to operate. Advantage P&P Filter Takes out guess work