You can thoroughly disinfect and sterilize your rock in a week if you want....Continue to soak in the 10:1 bleach for 24 hours and rinse lots!!!! Set it out on a tarp and let it all dry and air for a week then next weekend make a 10:1 water to muriatic acid mixture. Put on old power head in the bottom and run throughout the process. Add acid to water not water to acid or it will cause an explosion. Do this outdoors with GREAT respect. I had a prevailing breeze and I kept it to my back. Put all the rock in for about 45 minutes and then pour baking soda in to neutralize the acid....it will foam LOTS when you add the rock, then again when you add the soda. The soda will neutralize the acid to just water and salt. Wash, swish and rinse the rock with the final rinse being in RO/DI water and your rock will be pristine and ready to use. The bleach gets rid of life, the acid gets rid of plated out phosphates and heavy metals. Put it in, seed it or use FritzZyme 900 and you will have a clean tank....
