I moved mine last summer. I set up the new tank with new sand and as much of my old rock that I could remove without messing the corals up.( about 1/2)
I bought some new (fully cured) rock and let the new tank run for a month. While it was cycling I was just running the return pump and had a Korelia 4 in there for flow, a skimmer, 2 chromis and I used an old PC light fixture I have stored. After the tank ran for a month or so I spent one afternoon moving over the tunze's, the light, rest of the rock and the corals. Nothing even knew it had been moved. I did have to keep an eye on nitrates for the first 2 weeks loading it up so fast, but all in all it was painless.
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