How frequently should I test the water quality of my koi pond?
| | Question: How frequently should I test the water quality of my koi pond?
Top Answer (100% of 2 votes): Weekly.
Explanation: Since we design & install properly functioning eco system based ponds you dont have to play chemist. Once the pond becomes balanced it stays that way. The only time we test ponds is when we rebuild a clients existing pond & they have a heavy fish load to start with.Even then we usually set up a system to automatically change out 10% of the water on a weekly basis.