You don't want to put the fish in the freezer...it is a horribly slow way to go. Put the water in the freezer until the surface freezes over. Take out the water, break the surface, and place the fish in the water. It'll be over almost instantly. I have also taken a cup of cold water filled it with ice cubes and let it melt down a bit then add the fish. Takes only seconds. Sorry to hear about your fish Spish. It always sucks to have to put one down. You are doing the right thing.