Preparing rockwool cubes?

[headshake]

What is the best way to prep rockwool cubes for seeds. I started germing some Nirvana white widows using the paper towel method and want to place them in the 1" grodan cubes.

Peace,
JD

soak them in 4.5 to 5.0 pH'd (i pretty sure, lol!) water for 24 hours prior to use.

-shake