I have a new tank. I have filled it up with my saltwater mixture and will be puting in my live sand shortly. The sand is supposed to be the kind that you can put in and then put the fish in without doing a cycle. I am not really comfortable so I am gonna wait a while before I get fish. I obvioulsy want to put fish in the tank. But I think I like the idea of live rock. But I thought I read somewhere that the fish would eat all the orgnisms that make the rock worth having. Is that true? I also see a lot of other neat things in pictures like anemones, toadstool leather corals, and ricordea florida. Can I put them in a tank with fish, how difficult is it and how involved is it?