Hi everyone. Love the forum I'm learning a lot. I have a couple of questions before i finish buying everything I need to start up the tank. I'm setting up a 105 gal 5 foot tank that is being drilled this weekend, i already have the sump, and im going to end up putting a 4 foot 760 watt MH/PCP lights on it. Still looking into a skimmer and the possible add on of a refugium. But what else do i need besides RO water and salt to get the tank started? The live rock i will most likely get from a friends tank that he is planning on breaking down soon. Thanks