I have a garbage can full of dry live rock. It was covered with algae, gsp, and xenia. Now that the rock is completely dried out what would be the best way to get the dried organic matter off the rock. I was considering filling the can with ro/di and using a brush to scrub the rocks off. Does anyone have experience doing this, or any recomendations? The paramaters in my tank are good, I want to avoid any nitrate, amonia spikes. ???