Bleaching previously used rock

[KrisReef]

recommend testing the water in the soak bucket holding the bleached rock for phosphates. If it measures high you can treat the bucket with lanthanum chloride until the bucket reads low/zero.

Otherwise, follow your own gut like @Quietman recommends.

What is that old saw: ~"Too many cooks spoil the pot?"

 

[expofrog]

Lots of confusion here. If you are soaking in bleach, that is your cure/cook. You are breaking down the organics with bleach and rinsing them away. At this point your rock is reset and ready to cycle. If you want to mitigate algae and build up a biofilm, you can put them in a brute with saltwater, heat and flow and seed with your live rock. Let it go for a few weeks and good to go. Or you can do this in your tank and just keep the lights off for awhile.

Good advice