It went down to 27*F last night. It is 40* now at 10:30am and there is still ice out there in the larger containers. The tanks with tadpoles and goldfish are still 32*. The goldfish are fine but the tadpoles took a hit. About 20% of them are upside down. The koi and goldfish in my swimming pool are very active; the water is 40* at the surface.
