Can Rapid Rooter plugs be purchased at like... Home dePot or Lowes?

I live in an area that literally has zero hydroponic shops...
Illusion Reviewed by Illusion on . rockwool ph problems Ive been reading so much about the ph problems with rockwool... is it possible to root the seedlings directly into clay pebbles? I know that it would be much harder to support the plant, and it would also risk light exposure to the roots probably... but does anyone do it? Rating: 5