I'm new to this particular forum but hope someone can give me a few pointers. I live in north Idaho and have a small (50 gallon - 18 inches deep) pond in my back yard. I am looking for some tips on how and when to winterize my pond. I have a few water lilies, four sarassa comets, and a tadpole that looks as if he will be there all winter. Will I need to bring my fish in for the winter or will a pond heater be sufficient? How about covering, do I need to do that? Also will I need to have special areation in the pond during the winter months? When will I need to start my winterizing? Thanks for your help.