When do you remove bubbler?
I’m in Minnesota and use a stock tank heater. I take it out when threat of frost is over, or close to it. Once the pond is open it would take quite a cold blast for it to totally freeze over again. I like using the stock tank heater b/c it self-regulates, so when it warms up during the day it will shut itself off. They only cost about $25.00 and I replace it each year.
-Pam S.
Category: Philippines Internet Koi Society
