Just did a bleach and acid bath for all my dry rock i've had sitting around. It worked fantastic!! All the rock is now super clean and nice and white. I put bulkheads and valves forndrains in the bottom of two garbage cans for this process.
1st was the bleach soak. I used genaric bleach from walmart. These garbage cans are 34 gallons. Filled about 3/4 with rock. I added 2 gallons of bleach to each can. Mixed it up and let sit for 6 hours (until it stopped bubbling)
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