I'm currently in the process of cleaning a 55 gallon bow front tank I got second hand off Craig's list. It came with a canister filter which I know isn't the best filter for a saltwater tank. I bought an ro filter, coralife skimmer, 50 pounds of aragonite sand and 50 pounds of macro rock. I'm probably gonna get at least 20 pounds of live rock this week once I get the tank started but is this enough to start the tank? Am I missing anything? Thanks guys