You leave it behind. Or you get a whole buncha Canreefer's to help you on the day of the move.
Buccaneer Steve should know!
If you do a search, you will find some of Evan's (eposer's) work. Also Steve (Buk_A_neer) built his own tank. I think there are a couple of others on this board who have done it as well, but I'm only on one cup of coffee so far this morning and I don't remember.
Heck, here are some threads to get ya started ....
Evan's
http://www.canreef.com/phpBB2/viewtopic.php?t=6665
http://www.canreef.com/phpBB2/viewtopic.php?t=6284
http://www.canreef.com/phpBB2/viewtopic.php?t=8370
Steve's
http://www.canreef.com/phpBB2/viewtopic.php?t=7938