Is it really common practice to freeze your dead fish? several people have a dedicated fish freezer? This all seems so strange to me, I just usually say a few words and flush em. Or I put them in a zip-loc body bag for the trash man.
Luckily not many of my fish die...knock on wood...but honestly it never occured to me to try cryogenic preservation. I find this so funny, its like you freeze them in the hope that someday the right mela/pima combo will come along to cure the fish.