Thanks! Great advice on the knife scraping.For heavily uncured rocks, take a kitchen knife and scrape off obvious things not likely to live in a reef, there isnt a requirement to let it all die off internally in the tank, you can surgically pre cure it and remove destined to be lost mass such as tunicates, sponges, algae tufts, various slimes, vermitids, all the things on real live rock
you‘re in it for the bacteria not so much the top growths, cure away, force it with knife surgery and sw rinse till the rock is clean and ready.
those rocks have been tracked on seneye before which really helps to at minimum know if we’re dealing in toxic levels of ammonia even during an unassisted cure and they always pass as ok/within range. So adding a little to a sump isn’t likely a big deal, and an ideal diversity boost, only very bad shipping such as busted open box + sits on Miami tarmac for eight hours etc would be bad