That's rare resolve indeed
Your tank is worth big cash
I want to post only two threads that show by examples how to orderly take apart a reef to remove its sandbed without recycling, without using bottle bac, in total command the whole time assertively. If this mode is kept perfectly your tank will be the 400th skip cycle done and complete. If you change the mode such as not removing rocks and fish first, sand last, then you can kill the tank there's no middle ground.
Copying what every single job in these threads did simply works.
This is only six pages, the wording is important to read plus each of the six example threads. You're studying to know and complete reef tank surgery
https://www.reef2reef.com/threads/algae-identification.707457/
This next one the wording i type isn't important, simply pick and study ten random jobs
Notice how in both threads, all jobs, we take apart the tank in an certain order we never shop vac'd out the sand for example. Notice how we tap rinse all sand, every job, both threads? That's destroying its bacteria. You can see that doesn't matter, reef tanks don't need sandbed bacteria. You'd simply take yours out and not put it back. Use new rinsed sand when you're ready to put it back, or you can indeed rinse prep this sand and store it open, drying, until use
Pick ten random jobs and look at their outcomes, their order of ops for disassembly you have to do that part exactly right then its all safe
You're taking out your sandbed and not putting it back a while, the bacteria don't need to be replaced.
Here's the huge example thread:
https://www.reef2reef.com/threads/official-sand-rinse-and-tank-transfer-thread.230281/page-48