Yeah makes sense I forgot to mention that I did top dress worm castings unsure on the amount per pot and frequency though 3gal fabrics is what I'm usingIf you're going to go the organic route in pro mix, you will probably want to introduce microbes to the sterile pro mix using worm castings or compost either in the mix itself or as top dressing. That said, you will probably want your ph to be between 6 and 7. Just my 2 cents. Good luck!