EnderG60;1070453 wrote: Lol, a 42gal is nothing. Just get a few coolers and some buckets for the water.
I moved my friends 54g corner in 3 hours when he moved last month.
Drain the water into a few buckets, put the live rock in a cooler or buckets and cover with a wet towel(rock is perfectly fine out of water for hours, unless it has coral on it)
Put fish in a bucket by themselves(have a heater for this one while you set it all back up), coral in on their own as well(watch that what goes in each one cant sting other stuff).
Leave the sand and about 2" of water in the tank, move everything and reverse the process.
Its really not as complicated and scary as you think it will be. Just take your time.