Can the rock be rinsed off with fresh water quickly? Would fresh water kill these things off? I know there would be some die off, but if it is not rinsed for very long would it help? I had some badly infested rock with scores of aiptasia on it, I did a quick rinse with tap water to kill it off. It never did come back, but I have over 400g of water in my system to deal with the die off from about 20 pounds of rock.
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