Ok so in the summer I do a lot of prospecting. If we come across gypsum, calcite or any other calcium type rock and want to see what minerals they are holding, we will soak them in Muriatic. Often whats left over is just a sludge that we pan out to check for mineral content. I know this sounds off in left field, but the point is, I'm not sure what shape your rock will be in if left over night, you may end up with a lot less than you started with, and it will defiantly be dead. And what will you do with the acid when you are done? It would take quite a bit to soak a 135g tank worth. Myself, I think I would go with the Marco rock, with a bit of new live rock for seeding.
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04-21-2012, 05:09 AM
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