I'm in the process of buying a house and eventually will be putting in a saltwater reef tank. I have a general understanding of care and that's the easy part to understand for me. However, the equipment is a bit beyond me. I'm not sure if I want to get a reef ready tank or do it myself. I know what things like skimmers and refugiums and overflows are, but what do I need? What do I want? What sizes brands. It's a lot to take in. Especially since I'm getting a 120gal. Bigger tank steadier water conditions right?