New live rock

[stan450z]

ok i think i am ready. i have been soaking my live rock i got from somebody elses tank in some saltwater. My LFS didnt have the sand I wanted (just 1 20lb bag), and wont be available until Friday or so. Only have a yellow tang, and 3 small damsels, plus crabs, etc.

What should I do next?

I am planning to remove the rock and substrate (crushed coral) from my tank right now and put my live rock in the tank.

What should I do with my fish? Should I take them out while I am aquasculpting? And for how long? Is it ok to have my rock in there without sand first?

Also how much sand do I need?

I dont want a really deep sand bed. About enough to maybe be seen in the front glass Maybe about 2 inches for now. I have a 75g tank.

I am getting Moonlight SAnd by CaribSea. I will check the other LFS and see if they have it. Help guys..