Best way to kill rock

Rbredding;665517 wrote: 1/4 stick of dynamite..

Haha thanks, but I doubt the neighbors would fell the same way or understand. I ended up just boiling the rock and it is currently sitting out in the sun...
 
mojo;664823 wrote: LilRobb is right - the chlorine will dissociate in no time. In fact, if you leave a bucket of tap water out for a few days, there won't be much chlorine left in it.

You're fine with bleach -I've used it multiple times without any issue.

+1 Did a bleach rinse on my base rock before going in the tank. worked great!
 
I bleached over 500lbs of rock let it sit for a week just because I was lazy. Then rinsed for maybe 10 minutes and let it dry for a week outside . My tank has been up for almost a year now with no problems.I did add some water conditioner to the water.
 
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