12-10-2011, 07:31 PM
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1 part vinegar 2 parts water bath IMO, let soak for 24 hours (If it has excessive coraline algae buildup left). You can then rinse in hot RO/DI water for another few hours to remove remaining vinegar.
If you need to cook rock, let sit in a 1:10 bleach solution overnight, then several heavy rinses in RO/DI water after. That'll help remove any organics on the rock.