Live rock question

[JurisHP]

On Monday, I upgraded my tank to a new rimless. Beforehand, I took a lot of my live rock and put it in a spare aquarium as well as a trash can. Unfortunately, everything in the tank died and same with everything in the trash can. It smelled TERRIBLE! I took all of the rock and cleaned it in RO and it’s now all in a trash can with water and a power head. Is there any danger putting all of this rock in the new tank? Should I do anything else beforehand?

 

[Quietman]

Yes...you need to check it's finished curing which is essentially what you did inadvertently. Test for ammonia, if it stays 0 for a few/several days, it should be fine to use. They just had built up organics that with the change from old tank began to breakdown. You could also chemically treat, but you're probably most the way done now. Keep it dark and heated until you use it.