If you mean that Power Compacts, then they
WILL NOT be enough for a tank as deep as yours. With power compacts, you will not be able to keep clams, anemones, nor the more colorful SPS type corals. You will only be able to keep very low-light corals. Trust me, once you see a couple of clams, you will want them!
Can you tell us more about the lighting? How many bulbs, how many watts? What kind of skimmer?
On the sand, I would highly recommend 4-6" deep sand bed. If you decide to add it later, it will be so much work. (see this thread:
http://www.reefs.org/ubb/ultimatebb.php?ubb=get_topic&f=1&t=029053
I know that there are many opinions out there. There are some people who run without a skimmer, for example. Most people on this board use a good skimmer, and most use a DSB (Deep Sand Bed.) You don't need to use all live sand. If you use fine, aragonite sand and put a thin layer of live sand on top then the sand will seed itself in time.
I know that this is tough, and that you are excited about getting your tank. It is very exciting. We are trying to save you alot of trouble, money and heartache when thigs don't go exactly as advertised.
I think that Glenn would agree with this statement: "Don't blindly trust everything that your LFS (or anyone for that matter) says about reefkeeping. Learn about it for yourself."
I will also tell you straight up that if you get the tank before your first book on reefkeeping (magazines don't count) then you are doomed for failure.
Good luck. Give us a more complete list and we will give you more input. Maybe your LFS can swap some things for you.
[ November 10, 2001: Message edited by: esmithiii ]</p>