I had 6 large koi and 7 smaller ones in the fall. I placed 2 of the donut heaters in the pond, as I do every year. Well, we had a very cold and snowy winter but, they still died this winter. Can some give me some idea on why this happened? Thanks.
Pool solar cover? Interesting. What zone are you in? How does that work for a pond? How does the pond "breathe" with the solar cover on its surface? Here in zone 6b, I would think the cover would just freeze to the ice and not allow gas to escape.This is the third winter I've also covered my pond with a pool solar cover, which really helps keep the water open and minimize evaporation.
I have a "structure" of long boards over the pond, making a wedge shape and drape the solar cover over it...it isn't on the water's surface. @callingcolleen1 uses cattle panel frames to make hoop house type structure for her Canadian pons.Pool solar cover? Interesting. What zone are you in? How does that work for a pond? How does the pond "breathe" with the solar cover on its surface? Here in zone 6b, I would think the cover would just freeze to the ice and not allow gas to escape.
OK, got it! Sounds good!
Most cattle panels are metal, so would not bow, but stay flat. They can be set on something to go across the pond, cinder bricks or wooden supports around the pond would suffice, but what ever you use, make sure it’s sturdy.I have never heard of cattle panels. I looked them up at Tractor Supply online and those things look great! I'm going to go there and look at them in person. I'm guessing you can secure the ends to the ground creating a bow. I've been using pvc pipe, but these look like a better support for the fall leaf netting. My net would sag a little between the pvc pipes.
I had 2 of those donut heats, as I have every winter. Last winter I left the pump running wit the water falls and the 2 donut heaters on and survived. I didn’t do that this year because the the whole falls froze solid, I live in northern NY, Rochester where we have harsh winters and thought it might ruin my pump. I also made sure and checked whenever they were covered with snow to clean them off, maybe I didn’t check enough and that was my problem. I guess the big fish needed more oxygen, I’m happy my smaller fish survived. Next year I will try and check into using the balls or the cattle fence or something else that was mentioned. My pond is about 30/35 inches deep/7-8ft wide and I have enjoyed it for about 6 years.Most likely it was because of lack of oxygen.
Floating heaters are borderline effective, and if they were ever covered by snow and ice, even temporarily, the fish could have run out of oxygen.
It depends on a lot of factors.
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