10:1 ratio water:bleach, Clorox, 24 hours, rinse(some use a pressure washer) and soak and rinse again and let dry(in the sun if possible).Skip the let dry part if rinsing in acid.
10:1 water to muriatic acid or about 2:1 water to vinegar, soak for a few hours and rinse, soak and rinse in rodi, now the rock should be cooked for a few months in a dark container with salt water, a power head and water changes and seeded with bacteria before putting in a system.
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Crap happens, that's why they sell toilet paper in 48 roll packs!
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