Are you letting the military move you? If they move you they will crate up your aquariums and equipment and ship them with your HHGs. As for fish I've had people ship them to their new location and keep them in a temporary tank. The only problem with military moving is the turn around time it takes to get your HHGs where your going.
I'm going through the medboard process right now (Shot by an RPG in Afghanistan) so I'm assuming it will be like an ETS where you move yourself. As much of a hassle as it is dealing with the movers I would be more than willing to deal with them for the low low price of free. I would be okay re-homing some of my fish, but there are a couple that are just too cool to part with.