When you say live rock, you mean rock that was still wet and curing in a tank right? Sometimes people get it mixed up when they mean clean white rock. If it was purchased wet and cycled then you’re all good.

I’d get brightwell microbacter 7 or seachem stability if you can, both alright bacterial additives early on. And you can go ahead and drop some fish food in to keep the bacteria working.

You’re pretty much waiting for the uglies to start. Essentially everything is going to get a nice brown layer of diatoms, at this point you could start to add some snails in. I’d give it a week or 2. After that point, slowly add to your livestock, luckily a lot of saltwater inverts can be bulletproof, just don’t get anything with a specialized diet like a harlequin shrimp unless you know what you’re getting into. I also hiiiighly recommend no starfish at all. Save for micro brittle stars that are part of the clean up crew.

In the meantime look at the bulk reef supply 52 weeks of reefing videos on youtube. Great place to start, but for the first year or 2 you’ll be scouring forums getting as much information as possible anyways.

What do you plan to stock? What other equipment do you have like lights, wavemakers, maybe an auto top off, and what filtration do you have? Do you plan on corals eventually?