Thanks for the tag HG! Without reading the previous 2 pages (so I apologize if I'm repeating the advice of others)...The main advantage to me was I no longer had to pH my water. Add MegaCrop to the mix and easy/easy.
@InTheShed is fairly knowledgeable on Promix so maybe he will chime in.
ProMix is not coco and it's not hydro, both of which require you to adjust the pH of your water. It's a "formulated growing media" (that's how the manufacturer refers to it) that is peat-based. What we call soil is humus-based. ProMix, same as any good quality manufactured soil, is buffered to a specific pH range before it leaves the factory. There is no need to pH the water that you use to fertilize the plants. This information is direct from the folks who make it. You can read the opening post in this thread for more info.Iv been hitting the engine last 2 days. My head hurts. So I’m sorry if I replicated a thread. I promise I typed in “promix, use of promix, using promix, feed&promix, etc.”. Not really getting everything. Just bits and pieces. I’m buying the promox bx bail but from my further research it’s not to be treated like soil. Can anyone give me a push in the right direction. Some say it’s like coco. Others say more like hydro if you Air out the water. Some say they use it like soil but water more often like coco. So I’m freaking confused. Lol. Please and thank you for any help. I just wanna know how to treat, mix, and feed with it.
There are downsides to ProMix if you keep a plant in the same container for a long time because it's less likely to maintain its factory-set pH range than soil. If you're interested in more info on that, I did a whole write-up in my thread here.
I hope this helps!