Is there a problem
@ChaosHunter?
Weren't we all just talking about ocean forest on another thread? I have used both but really pro mix is still done like a soil grow. It has a lime buffer.
Just doesn't feed the plants for long before the need to add fertilizer. It has a seedling starter charge in it. Lasts about week 2.
I get better results in amended soil like ocean forest because of the vast amount of different micro nutrients in the organic inputs. Especially seaweed and worm castings. And plants like the slow release.
It's the transition to feed that was the only tricky part. But 20% added perlite usually solves any nute problems with added drainage.
I used botanicare kind trio with pro mix hp for a year or so. Great results. Good high and flavor but it was obvious which was better when I switched to the ocean forest. But there was a learning curve of course.