Good details, yes indeed the secondary heart of the thread is that moving live rocks among tanks never ever decreases bacteria when in the new setup.
Most people would assume the move is an insult, it’s not, and to get lowered bacterial colonies on live rock you’d have to medicate it or subject it to unreasonable handling and storage which you didn’t do.
Whether you fed the live rock during storage doesn’t matter, the bac sustain years if just kept wet. (What we were boosting above was the initial adhering of bac to surface as I’d read, but once adhered on the live rock component here it changes into no support needed, only water, bac been fine for millenia without us)
Your tank can support the amount of life that the true live rock base component can support, right now.
People hate to see speed up advice... but it’s a fair and ethical inquiry cuz we know you aren’t dumping nine tangs in tonite. Making use of biology within reason is why we tinker, most certainly if you want to handle this tank like the mixed cycle portion of that thread you sure can. The little bit of fish decay is harmless, we all lose a fish a time or two. Pull the rotting fish, crank skimmer, get to reefing lightly then yep.
By not dumping in tons of chems, testing, blasting ammonia you’ve kept a useable water table. Put in some clean up crew members and a couple simple corals, nothing cra, under those cannon lights and blue them up big time on a nice low setting. It’ll work, and it’s ethical says the guy who’s whole reef life is a fishbowl.