- Jun 14, 2020
- Reaction score
What are you folks using to keep your koi safe under the ice in wintertime? I live in MA and my pond freezes pretty well each winter, with ice probably 6" thick at times. I've seen ads for 1500 watt devices that keep a hole in the ice, to allow the bad gases to get out and oxygen get in. That seems like a lot of energy to use. I'm not sure that method is any better than this breather I've been using, which freezes into the ice, and has a tiny pump that hangs down near the bottom, and pumps a small trickle of water up inside the top dome, where the bad gas gets out, and I assume oxygenated water falls back down into the pond. I assume that the tiny pump uses hardly any energy, compared to the 1500 watt heater device. I've used mine for 7 seasons, and had to epoxy it a couple of times when I noticed it starting to come apart in Spring. I'm probably going to buy a new one, since it's now old, and the worst thing would be if it died in midwinter, when it would be difficult to de-install and pop in a new one. Haven't lost a koi yet when using this device.