I just started a 72 gallon reef tank and I wanted to have a different tank to put my sick fish ( if I get any) . Do I have to do the cylce the same as I did for the other tank? Do you have to buy all the same things like the wetdry and all the live rock and sand? Or can you use some of the sand from the tank that has already cycled and get a small piece of live rock?.. sorry about all the questions. But I was just worried about all my inverts.