Just restarting an old tank and wanting to make sure the rock is 100% pest and phosphate and problem free. I bought around 40Kg of rock from a guy that had removed it from his tank around a year ago and it has just been sat around dry since then. However, I don't know or trust the history (I'm just suspicious like that no other reason) and worry it could have pest issues or phosphate issues. Since it's not been in water for a year would it be safe to assume everything is 100% dead, aptasia etc don't survive that long or re-emerge when re-hydrated? I am thinking of giving it a beach bath for a day or two then rinse, drying in the sun, then RODI with a declorinator. Would you guys think that's sufficient for any latent pests? After its 100% pest free, what is the best way to check it doesn't have a hidden phosphate problem before I go through the process of re-seeding and curing it to bring it back to life?