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Should newly acquired rocks such as Volcanic and Ocean be boiled first to rid. them of any objectionable parasites or substances or will soaking do ? I would be afraid that the metal of the pot would leech into the rocks themselves. Thank you.
Ann

Good points from @Haduvokone there! I wouldn't boil them i would just soak them in some RO/distilled/bottled water and get a scrubbing/nail brush on them if they have any stubborn dirt on them. I usually only boil wood but with Opae ula tanks you shouldn't have any of that as it reduces the waters PH.

Thank you both. I'm glad I asked first.
Ann

Your tanks nitrogen cycle will take care of any dirt that creates ammonia etc, scrub it and dump it into your tank

Sounds good to me!
Ann