What about using homemade rock or tufa or limestone or whatever it's called (the dry stuff)? Guaranteed to be worm-free, aiptasia-free, and crab-free. I would think, given enough time, it could be seeded with coraline and even feather dusters by transplants. I dunno ... just an idle thought on my part
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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