This is my simple DIY filter system that I used in my breeding tank. I used mosquito net as filter media and old empty bottled water as filter housing.
There is an advantage in using airlift pump
- You will save electricity since you will no longer need to install aerator since air is used to lift the water.
- You will not be endangered by an electric shock from like using a submersible pump since submersible pump sometimes when broken already will ground in the water and cause to electrocute you and the koi fish.
- You no longer needed to install electrical wirings going to the koi pond since you can just run a garden hose to the airlift pump out from your window and the air pump that supplies air to the airlift pump can be installed inside your house.