Yah, I as well was told that my pond should be about 4 ft deep so it won't completly freeze. However I'm getting mixed opinions some telling me yes they'll be fine and other telling me no they'll die. Well I could set up an indoor tank for them with ease but they are quite little and my pond is built through stacking large rocks, so there are hundreds of nooks crannies and caves for them to retreat to. So catching them is going to be hell (especially catching all 25 of them). They are extremely fast too, so chasing them with a net isn't going to work. And to add to that they are extremely afraid of me still, and run at first sight of me.
So right now I have no idea what to do.