If you want to improve the quality of your water, you filter work efficiently and keep the water well-oxygenated, it is absolutely essential to frequently clean you tank filter. Many aquarium owners do not have the cleaning habit for their filters on a regular basis and this can lead to problems with water chemistry.
It is much more essential and require more frequency when it comes to small tank as 10 gallons tank. Even you get the best filter for a 10 gallon tank, you also need to include your aquarium filter in your routine cleaning schedule if you want to keep your tank clean and running properly.
#1 Mechanical filter
Mechanical filters need their sponge or foam pad cleaned around every 4 to 6 weeks. However, there is the note that you should do this work with the same time as you change a part of your aquarium water. Clean your mechanical filters after tis one or two weeks. This will help your fish avoid from two shocks at the same time and being stress.
Cleaning it by always swishing it around in water that you take out from your aquarium. Do not clean it under the tap, you just need to remove the dirt and debris by your hands and then replace the sponge or pad.
#2 Chemical filters
Chemical filters contain carbon and it requests to be replaced frequently, around every 3-4 weeks. This is mainly because carbon removes chlorine, tannins, and other harmful chemicals but it is only effective for a few weeks, and then you need to replace the cartridges.
Making the habit of doing this once a month along with your partial water change. I even do it more often when my 10 gallons tank becomes cloudy very quickly. However, the draw back if you have a cartridge in your chemical filter is that it can be difficult to clean and messy to maintain.
#3 Biological filters
Your biological filters contain a huge amount of bacteria to process fish waste. The more bacteria you have, the cleaner your tank will be in the long term Due to this replace your biological filters means that you will kill these bacteria.
So, biological filters do not need to be cleaned very often or at all. If you want to clean a biological filter, it is better to do it in the water from the tank, while you doing the partial water change.