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					Originally Posted by  tlhood
					 
				 
				that is sad to hear. 
  
Thats why I put my rock work in first, and had it sit solidly on the bottom glass, then put in sand, so burrowers don't crush themselves. 
			
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 Ironically all my rock is sitting directly on top of egg crate with the exception of 2 pieces which were late additions and of course they chose to burrow under the one that was on top of the sand substrate...