I only saw a few float up when the pond froze over also. I hoped they had made it but after a electroshock and using the cast net I haven't seen any. Usually I have seen them on the surface in the afternoons by now. I fear that they didn't make it. My pond is 20 ft deep so I thought maybe they had a chance but I went ahead and ordered some more incase they don't show up. Greg Grimes said that he hasn't seen any in the ponds that he has been shocking either so you may want to go ahead and order some. However most of the suppiers are out of them because they died in there ponds too. Good luck!