Just bought a 75 gal tank with protein skimmer, filter, hood w/lights, heater, very little crushed coral, a few tester kits, stand, hydrometer for $375.00. Now the hard part (this is my firts SW) I am purchasing a 150g bucket of salt here tonight, just to have extra. How much do I add? Biggest question here though is: How do I go about adding the crushed coral, and can I mix crushed coral with live sand? He also offered me his cured live rock that is well of and has stuff growing on it already for 4 bucks a pound. Should I buy it? How do I add it? When do I add it? If I think of any other questions I'll ask them, but I guess I'm just looking for a set of directions on how to set my tank up step-by-step.