Can I turn off my pump in my koi pond in the winter?
I have a leak in my pond liner. I think it is at the bottom because a windstorm moved a large plant and my water level started to drop after that. The temperature where I live is from high 30's at night to 60's during day. Can I turn off my pump and let my water level drop without depriving koi of needed oxygen? Also, when I remove koi to completely drain pond, how long can they survive in small holding tank w/o pump