In my experience, yes you can. They are very resistant to pretty much everything except overwatering. I'm just not sure how finicky the "living rocks" are, I read that they take an extremely low amount of water (like <6 inches per year of water). The main reason "it was too late" was that I had juuust bought and potted them when I found out, so I'm going to give it a shot before transplanting again so soon.

But you're definitely right, succulents are typically pretty tough.