we did this with our first tank, and it's proved to be a bloody nightmare, I'd have rather started from scratch. Before you agree to take the tank get a sample of the water and take it to the lfs for testing, you might just be inheriting a nightmare.
sorry to be negative but just thought it's worth saying that! have a read of the thread linked in our sig and you'll see the troubles we've had.
right as for moving, it's not that hard. Make sure you have loads of buckets and big bowl things that will fit inside the tank as you may have to move coral's without exposing them to air. shed loads of clean towels that you don't mind getting drenched, rubber gloves, fishy bags, and fresh and salt RO. I'll do a bit of a step by step guide.
- unplug all the equipment, leave the heater submerged it'll need time to cool off before being removed from the water
- start to drain the tank water into buckets, you'll want to keep as much as you can, fill a couple of buckets then stop
- before the highest up coral is exposed to air, take a plastic bowl put it in the tank and slide it under the coral so you can remove it without it being exposed to air, get your rubber gloves on too as you never know what might sting!
- remove all the coral's in this manner and put them carefully in buckets, jugs, bowls... anything but keep them covered with water.
- remove the live rock, this can come out of the water briefly but if you can then transport it in water, at the very least in a plastic bag so it doesn't dry out.
- then when you've no decor in the tank it'll be much easier to catch the fish so fill some fishy bags and net them
- drain the rest of the tank keeping as much water in bags or buckets as possible.
- pack everything up carefully but quickly and drive home
- set the stand and tank where you want it
- put the equipment in place but don't switch it on.
- fill the tank with the water you've kept, topping up with fresh or salt RO as appropriate (test it with your hydrometer) remember to allow for water displacement when yuo put your LR and coral's in
- plug in the equipment and wait for it to come up to temparature.... use this time to panic mindlessly and shout at equipment that won't work
- when it's up to temp and everythings working build up your LR in the tank, then place coral's appropriately
- when your satisfied with everything float the fish bags for half an hr then release the fish
- leave the tank lights off for at least an hr or so, the fish will be scared and will prefer to be in the dark
- after a few hrs do some water tests and turn the lights on, check all the coral's are opening up.
- come back online and tell us how it went!
good luck
