Good questions. I could probably insulate the sides and top, but it would be quite a chore this year to insulate the bottom of the tank. I'm not sure where I'd put the fish in the interim.

What would be the best insulating material that would still let light into the tank? I've convinced myself that the light going through the clear sides of the tank is beneficial to the fish.


Holding a redear sunfish is like running with scissors.