Join Date: Feb 2006
Location: San Francisco, CA
Usually the rocks and sand would have crap on it, so boiling would help. But then there are tons of other dead crap that will stay on the sand making ammonia problems from the beginning. Then your rocks could leach lots of calcium on it, so soak the rock in a solution of vinegar and see if it starts producing bubbles, cuz that means it has calcium on it.
I say buy your sand, and check your rocks. But really, rocks on the beach aren't too nice looking for freshwater aquascaping, unless you get lucky.
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