using TGA super soil need a bit of help please!

So im using TGA super soil (pre bagged) and im having a bit of lime green yellowing and a bit of purple on the stems so i know they arnt 100% healthy . What should i add to help them out? Maybe a bit of CalMag? Thanks guys!

Im sorry i havent used Supersoil before but have done tons of research on it. If your using smaller pots, they might be out of juice. Are they in veg or flowering? I was also looking into getting the pre bagged SS. I live in Oregon so its available here but Im so confused on if its straight SuperSoil or if you have to still mix it and cook it. Ive emailed TGA twice but not still no response.

I went to school of dank so they gave the run down on it. Long story short its ready to go. They got top soil and super soil and you just half to pot it half and half. Sub jst uses pallets of that now so he dont break his back mixing it. Thats why i go with buying it now that its bagged lol.

Im thinking it needs a bit of Calmag though sub mentioned using it in his last video.

Oh they are Plushberry clones that are just at the start of veg. New cycle so small little ladies.