I don’t have any comparison. But what I can say is that the decision to go unfertilized definitely was the right one. It’s so easy. You just follow the instructions of your fertilizer beginning a week after the seed popped and that’s it. I didn’t had to pre calculate wow what’s inside there already and then use less fertilizer in the beginning or any vs like that. I just put the fertilizer as the table said and I was good. „Promix“ is wrong branding in my opinion. It should be „The Mix“ because everything else is nonsense both for beginners and for pros. Except for living soil of course which is a different concept.