In your case, you could do it out of curiosity. I think if someone is having issues and suspects something is out of whack, it may give them some much needed answers. I’m doing it because my current tank has given me so many problems, that I think knowing what’s in the make up of the bacterial diversity or lack of could shed some light. This is the only tank that I’ve used dry rock (combined with live rock) and it’s been nothing but issues for me. My 22g I had before this was set up with ocean rock and I had corals in there almost instantly and sps were growing out of the water.