I have used MPK / Ripe Blend Flowering added Kelp , Humic, Fulic Same as >/ 4 - 18 - 38 Blend for base Flowering... EXCELENT RESULTS!!! / Bat Guana / Myco = Innoculant Blend & cane Molasses for Super Tea add. I also use Earthworm.
Just ordered K Mag... I 100% Love their Products and think they work GREAT!
You will not be disappointed and NO I am not affiliated with them at all just found them by accident and gave it a try...