I'm considering moving up from my 75g display tank to a 120g display tank. Then behind the scenes, (the system sits against an outside, side wall of the living room) building a 5’ x 4’ equipment room to house all of the “stuff” that has creped out from under the tank and is now behind the sofa and dining room table. I have 30 amps of 220v AC power available (room to grow as I’m using only 15-20 amps of 120v AC today) as well as hot & cold water and a drain line. I believe that I would house the RO/DI unit, DI water storage, medic tank, 75g divided in half, the 30g refug/sump, skimmer, Ca reactor, etc... I’d like to explore 3 questions. First, who has their equipment separate from your tank in a closet or room, and can you share pics of your setup. What do you like best? What would you change?