I just bought an aquarium. I'm so excited. I am new to this. I have been reading all the past post here on this site. The aquarium I bought is used. The person I bought it from had it set up as a reef tank. This is what I wanted also. He sold it to me as a package the tank, powerhead, skimmer, stand, light hood and a bunch of extras. The tank is 75 gal. I think I got a good deal $350. He had a lot of live rock. The tank has been down for a few weeks so the rock dried out. Can I use this rock in my reef? I thought I could use it as base rock and place new live rock around and over it. If I do how should I prepare it? Placing it in the tank for the first cycle is what I thought I would do. I also plannned on putting new live rock and live sand.