Bleach
 

I bleached out so rock 3:1 with water ,when's the safest time to put them back in the tank <:(((((><~~:rockout:

bleach
 

3 to 1 is very strong
i usually do 20 to 1
but either way you have to keep cold water rinsing untill there is no bleach smell
you can also leave them in the sun after rinsing to disapate the clorine

Yes I'm rinse rinse rinsing them till I can't smell the bleach anymore , then let I'm dry and rinse again and I used I guess close to 15/1. <~~~~~<*\\\\\\><~~~~~~~~