don't mean to correct you or anything, just trying to look out, but i believe the correct pH to buffer rockwool is 5.5 (and i've heard lower), although some rockwool cubes/slabs come pre-buffered to be pH neutral without needing to condition it

and honestly, i've always had 100% success rate with the paper towel method, and usually most germinate in 12 hours. If the glass of water works for you and always has, then definitely keep doing that, im just saying that it works for me

but i would definitely wait till you have a taproots before you plop them in the rockwool

*edit*
also, the soaking is for 24 hours @ 5.5 pH
Illusion Reviewed by Illusion on . Rockwool or cup of water? right now i have 10 rockwool cubes soaking in 5.8 ph water for about a hour.. i need some quick advice if i should let the seeds sit in a cup of water to get the tap root before inserting into rockwool, or will i be safe with a good shake to release some water and putting the seed in from there? Rating: 5