There are a couple different types of pond filters for you to choose from. Hopefully they can be thoroughly explained to you here, that way you will have a better idea of which one suits your pond needs best. There are basically three several types of filtration systems. You have your mechanical, biological, skimmer and chemical filtrations systems. Pond filters are absolutely necessary if you want to keep your pond 100% clear and free of toxins.
The pond 
filter is going to serve many purposes. First off, it will keep your pump from getting clogged with debris. It is also going to get rid of dangerous fish waste. It also minimizes algae growth and removes waste from the water. Keep in mind that you are going to need to pick the right size filter as well. You can do this by calculating the amount of water your pond contains, if you don’t already have this information.
First off, you have your most common and useful type of filter, the biological filter. If your pond has any fish at all, you are going to need this type of filter. Your biological filter is going to ensure the harmful things, such as fish waste, is converted into nontoxic material. Plants perform the same action out in the wild but in a pond, you are going to need a little man-made help.
The next type of pond filter is your mechanical filter. This type of filter is mostly used for ponds without fish. It mainly handles the job of trapping dirt and debris. Keep in mind that this filter will often need to be cleaned because the dirt is going to clog it.
Chemical filtration is the next type of pond filter system. This type is not nearly as important as the above two but does serve an important function. The chemical filtration will help eliminate pesticides, herbicides, algae growth, weeds and much more. Lastly, you
have your skimmer filters. These have recirculating skimmers with a filter attached to it.
Your filtration system will directly effect the health of your pond. You need to ensure it is the correct one and that it corresponds with the size of your pond. Each one serves a variety of purposes and it is crucial you choose the right one for your needs. Remember, if you have the proper pond filter then your pond and the lives within it will be healthy on the inside and out.
