Heres my mix, Im new at this so please let me know if to add more of an any item for better results or good how it is..
If you already have the Pro-mix use it but if you get a good deal on Coco that's the better medium.
9 gal Coco (pro-mix is mainly Peat moss/perlite) Coco has the best air/water ratio and when it breaks down it gives nutrients to the plants.
2 gal Perlite
2 gal Vermiculite
5 Liter EWC ( I'm a noob also whats this?)
3 Liter Worm Castings
2 Liter Peat moss
3 Liter Compost or Worm Castings
8 Tbs seaweed extract (4-2-3)
6 Tbs Mex Bat Guano (10-2-0)
20 Teas Rare Earth ( Rock Dust ?)
I am also new so if someone else can also help out but to me it seems you are over doing the nutes. Worm castings/bat guano/Rockdust/seaweed extract should be more then enough to at least get past the veg stage.