A mechanical filter is a filter that primarily filters debris in your pond. It usually consists of a variety of filter mats (of course, thin, with carbon coating, etc.), Beads, filter mats, etc., which will trap & fragments that are in your pond so you can remove it.
A biological filter is part of a filter where beneficial bacteria (which are a good type of bacteria) grow and multiply. These beneficial bacteria require a lot of surface area to grow, so the larger the surface area, the more favorable bacteria you will have. When you add beneficial bacteria on a regular basis, such as Microbe Lift for ponds and water gardens, less than what they say, 50? in size, or PlanktoniX for ponds and lakes greater than 50 × 50; in size, you always increase your biological pond filter.
Sometimes manufacturers make filters that provide both mechanical and biological filters. Beneficial bacteria can grow on filters that may have a small surface area for their growth. Sometimes there are other biological environments for bacterial growth, such as bioballs, filter yarn, biotubes, biobuses, etc. All these advantages. The only thing that needs to be noted with the help of biological filters is that the larger the surface area offered by the biological filter, the clearer your pond will be - at least in some cases. Most manufacturers clearly advertise the amount of surface area that their particular filter offers. Pay attention to this number, but be aware that this is only part of the equation when it comes to the fact that you are purifying pond water. There are many other factors, such as:
- the quantity and size of your fish in your pond
- what size is your pond
- what size filter do you have
- what size pump do you have
- if the pond is in full sunlight or partial shade
- how often does water change
- other chemicals added to the pond
- how often water is filtered
- If you are using a UV brightener or UV sterilizer
- if you constantly add fresh water to your pond
- what your pond is made of
There are many different types of pond filters. Some of them are filters with gravity feed, that is, they must be installed uphill. where water flows from the filter down into the pond. Other filters may be submersible and may be located inside the reservoir itself. Some have built-in ultraviolet rays that can kill most bacteria, fungi, viruses, and floating algae cells, while others do not have built-in ultraviolet rays.
The rule of thumb is to have a filter that is large enough to filter the entire volume of water every 3 hours. For example, if you have a pond that is 9,000 gallons, your filter should be large enough to filter 3,000 gallons every hour. Be aware that this is not always the case.
