Hello everyone, The current temperature outside with the windchill is -38C. I can see that the tube in my pond breather is starting to fill with water, im worried that the ice will freeze under the breather tube and then just start pumping all the water out. Has anyone had an issue with this? What happens when the ice gets thicker that the tube is long?...Im also worried that the pond will just freeze completely solid. The temps will be warmer by Monday so I just need to get through this weekend, anyone have any tips on stopping a raised pond from freezing solid? Im so worried, I have had my koi for years in my indoor pond, I would be devastated if they all died in their first winter outside. Im home all weekend so im willing to do whatever I need to. Any advice would be much appreciated.