Best way to swap everything over to new tank?

[Nano]

I did mine over the course of about 2 weeks, I added sand and water first, let the sand settle, then some LR, and some water from my old tank, then I added some of my old sand bed into the new tank, and a bit of LR every day or 2, then my clown fish went in, then I waited about 4-5 days, before putting in my corals. I dont think theres a right or wrong way, just a better way.

[BMahura]

I Transferred my tank about 2 months ago and didn't have any problems. I started by Removing as much as my coral LR and fish and putting them into Big tubs. The key is to always make sure your tempatures stay consistant whil doing the transfer. Next i added all the new RO water i needed to my new tank and put all of my old water into the new tank from my old tank. After then i started acclimating my coral fish and LR. It was pretty easy and my tank was about 20 feet like yours. I used all new sand to minamize my chances of getting a cycle.