Quote:
Originally posted by harryk
The shells should be fine. I'm not sure about bleaching the rock though. you might have contaminated it if you used bleach. After all it is porous.
Harry
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I dont remember which forum it was but its referenced to once in awhile on here that I found the info but anyways they CLAIMED the following should be ok (im still a bit iffy on it though myself). Soak rock in 50/50 water/bleach for 2 days, fresh water for 2 days, freshwater/baking soda mix for 3-4 days, fresh water for 2 days and then rinse really well.