i moved them in their aquarium with almost no sand, no tank decorations, and about an inch and a half of water. (i used so little water because the last time we moved them they spent the majority of the time on the only stable surface available - my friends hand! i figured a small beach would be sort of a substitute for that.) we insulated it with about six layers of blankets on all sides, and put a piece of white cardboard over everything to reflect as much sunlight as possible. we tied it down tightly. the whole set up was positioned right behind the cab. the truck was packed so that the fish stand, aquarium, and all of the fish stuff was the first to be unloaded upon arrival.
thanks again, i wouldn't have put as much thought into insulation otherwise, i appreciate it.
donald