Originally Posted by
mjfromga
The cover did seem to help when sun could hit it, but seemed to have little effect when there were clouds. Even today was very warm, but the pond doesn't want to warm up worth anything. Unfortunately for this extremely atypical winter, I did install the pond directly behind the house, where it can get VERY VERY little direct sun. It is great for our hot summers, but it also prevents the water from warming well in cold weather because very little sun gets to it.
Aside from the two tiny ones I mentioned who did freeze, all the other tiny ones as well as all the adults are totally fine. I wanted to believe they aren't weaklings like everyone tries to say they are. Sure the babies sometimes are, but I wanted to believe that descendents of the prussian carp would not embarrass their ancestors by dying in the cold so easily.
I'm still fairly new to all of this and so I am always happy to try things. Pulled a few to check on them today. All seems perfectly well.