Koi Care Basics Blog

Koi filtration is probably the most important mechanical function in your pond! Without a filter you won’t be able to keep your water clean and we all should know by now that the most critical factor in koi health is water quality!

I just put up a new Squidoo lens about the koi pond filter. It provides information on the basics of koi filters, how they work and what they do.

Different aspects of filtering are reviewed and you will find out where you can go to save money on all your koi pond filtration needs!

Don’t neglect to learn all you can about the koi filter that you may already have, or that you will purchase in the future. Your filter determines, to a degree (along with the size of your pond), how many koi your koi fish pond will be able to sustain, how quickly and large your koi will grow and how healthy they will be.

If you want to learn more about the basics of koi and koi pond care head over to my website and grab a copy of the ebook or audio version of Koi Care Basics

Alan Deacon
KoiCareBasics.com

For any pond over 1000 gallons it is wise to use a pressurized biological sand or bead filter that can be back washed. There are pros and cons with either sand or beads.

During the backwash portion of the operation, sand, since it is heavier than water, falls to the bottom of the tank instead of flowing out through the valve with the waste. Plastic beads, since they are lighter than water, float to the top. As they are smaller than the valve-strainer’s holes, they get washed out through the valve into the waste stream. More and more beads are lost during each backwash operation.

Bead filters also have limited efficiency. Smaller beads have more surface area for good bacteria colonization, but tend to get flushed out during the backwash procedure. This doesn’t happen to the larger sized beads, but they have less surface area and thus are unable to filter as efficiently.

By under-loading the sand filters, and backwashing them more frequently with higher pressures and flow rates, you can take advantage of the greater food processing surface areas, while eliminating the chance of plugging, which can be their main fault. Many manufacturers recommendations for loading sand tend to be too high.

This causes the sand to plug the filter which is the main drawback of sand as a filtration medium.

Up-flow and gravity flow filters need to be cleaned regularly and it is a filthy job. The filter media is packed with rotting organic matter and foul odored fish waste .

As you clean and handle all the various parts of these filters you will find small, white feces-eating worms crawling on your hands and arms. Add to this the ambiance of the offensive odor described above and you don’t exactly have nirvana!

The up-flow and gravity flow filters, though inexpensive to make, cost a fortune to purchase. So, in addition to paying a premium price to buy one, you are also spending so much time and labor that you might as well have paid at least twice the price!

If you use a pressurized filter, all it takes is the turn of a handle for 2 to 3 minutes and the filter is clean. Almost like magic! This saves lots of time, inconvenience, labor, mess, and wear and tear on your Koi. It uses slightly more electricity to operate a pressurized pump, but the savings in labor more than make up for it in most pond owner’s eyes!

You can also use the waste water for your plants. It is packed with nitrogen and works even better than many of the fertilizers created especially for this purpose!

As you can see, to find the type that is right for you, you have several decisions to make about Koi pond filtration.

Alan Deacon
KoiCareBasics.com