Kenaneu,
Try putting the rock in a bucket with neither salt or fresh water. No water at all. The shrimp won't be able to breath and come out and the corals won't have fresh water in the bucket to hurt them. This is how I get my pistol shrimp out of holes in the rock and it works every time.
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tests as of 1/04/08
Ca>480ppm, I'm bringing it down
dKH=9, ok
PO4=0ppm, ideal
1/06/08 after a water change
Ca= 480ppm, still a little high
pH= 8.2, I'd like it at 8.3
NO3= 10ppm, acceptable
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