Flake
Aquarium Advice Addict
That's not really an option as far as I can tell. Making it easily detachable would compromise the structural integrity. Or so i'd think. CHeck out the garf calculator. Simple basic plans.
http://garf.org/tank/buildtank.asp
You could build a smaller one now. That's not really cost effective but worth the fun.
http://garf.org/tank/buildtank.asp
You could build a smaller one now. That's not really cost effective but worth the fun.