I'm buying about 140 lbs of rock from a guy whose tank is still running. I haven't seen the tank but he sent me some cell phone pictures and it looks to be in decent condition. I am meeting him halfway(he lives kinda far) and he will be bringing the rock in containers without water I assume(he's doing all this with an Audi...).

From the pictures it appears some of the rock pieces are rather large & I was planning on breaking some of them in half. It is a 75 gallon with 35 gallon sump underneath with Octopus 150 protein skimmer. The RODI water & salt were mixed & tank has been running for about 3 weeks & I just added 130 lbs of dry sand today.

My Question:
The rock is going to be in & out of water for a few hours it appears during the moving/breaking process. Would it be ok to put this rock directly in my new tank after this or would I be better off curing it in something else? I've read the threads & never got a clear answer on this.