electricthot

to treat rockwool u mearly need to soak in water ph'd to 5.5 , you can add some weak nutes to it if u need to but not sure what (i never do) check this out as well
http://www.simplyhydro.com/growing3.htm

I found a recipe for preparing rockwool for first time use to enhance ph control, but specifics were not available. Could someone "fill in the gaps" with specific quantities and mixing/pre-soak advice, please.
Here are the ingredients:
To pre-treat rockwool for planting, soak it in a solution of fish emulsion,
trace mineral solution and phosphoresic acid (PH Down) for 24 hours, then rinse.
This will decrease the need for PH worries later on, as it buffers the rockwool
PH to be fairly neutural.

OK. I just saw your last post. Thanks. May I consider you my guru through this adventure??

Should I use distilled water?

I'm not very savvy here. I guess I'm in VM. I'm just a country bumpin, an old hippie (and damn proud that way, too! lol). Thanks for the guiding hand. Guide me through the most critical of the germination stage and I'll reward you with the same reward you guide me too. lol