Is it a good practice to do a full cleanout of my koi pond (approximately 1,00 gallons) every spring? I was planning to do the following: Move koi to a temporary holding area; drain the pond; pressure wash the gravel/rocks; clean the pump and reattach; add filters and bioball; fill pond; add detoxifier and bacteria; move koi back to the pond.

Yes, with small water gardens with fish, it may be necessary especially if you live where you have a winter climate. Best time to clean out is spring. Check out the DIV videos for instructions and written instructions on our Pond Tips.