Alright so I got the tank and stand situated where it's gonna live. Filled it with tap water ( sorry, wasn't about to buy 125 gallons of RO!). Threw in tap water conditioner, a heater and a small powerhead for some water movement, tomorrow I'm going to add my salt and match my sg of my 55 gallon that's running now. After the sg is met how long shoukd I wait before introducing live sand and live rock? Can I do it immediately or will it harm the bacteria? I was going to add the 65+ pounds of rock and 60 lbs of sand and let the tank run a few weeks before I begin the breakdown of the 55 and add another 60+ lbs of lr and 40lbs of live sand... And then ultimately the corals and fish.... Leaving me with a 55 that will become my new sump. Someone please help. Is this feesible?