@Ripper ...
From the Advanced section in Ryan Riley's Elite Marijuana .. recommended to me by
@912GreenSkell as it happens!
"In tests at South Carolina's Clemson University, seeds soaked in liquid seaweed extract showed rapid germination, and the resulting seedlings had increased root mass and stronger plant growth than seedlings from untreated seeds. They also had a higher survival rate ..."
I'm sold. Not just good for seeds, but roots too.
Makes sense, when you see the list of minerals seaweed has access to ... the sea contains run-off from the whole planet, no soil can even compete.
It's next on my shopping list.
Edit: Norwegian's the one to go for, apparently..! Seaweed I mean.