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					Originally Posted by vancity
					
				 
				I'd leave it out overnight or take more drastic measures like that but I want to put the rock back in and not kill off everything as the tank may not be large enough to handle a mass die off of all bacteria, algaes etc. 
			
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 Since you soaked it in RODI water when you tried to electrocute it that will kill the algaes and bacteria. I would suspect the rock will cause a mini cycle from the die off.
Since you have already nuked the life on the rock then you can try soaking it in 50% hydrogen peroxide and 50% tankwater for an hour or more.  
The easiest method is to just leave it out in the rain for a week or more. Then cycle it in a bucket for a month or so. The coralline etc will grow back.
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					Originally Posted by vancity
					
				 
				The electrocution method was done in RODI water (didn't want to add current to salt water) 
			
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 It is the minerals in the water that conduct electricity and not the water itself. RO/DI water is non conductive, ie conductivity or TDS = 0. I have seen people put computers(motherboard etc) in RO/DI water and run them. NEVER MIX ELECTRICITY AND SALTWATER!!!
Glad your still alive.
Cheers,
Tim