HELP!!! No clue what is going on.

Here is a run down of what i am running. 8 bulb t5 for veg and 2k for flower advanced nutes for the most part sensi A&B grow/bloom bud ignitor and caroload and sensi zyme all from advanced nutes and sweet raw and liquid karma cal-mag that are not also using RO water. i am running a beni tea from a local brewer always ph my water between 6 and 6.5 feeding at like 300ppm in veg. all the problems are in veg sluggish growth and yellow leaves with brown spots all over purple stems curling leaves idk what to do !! im strict about what i give them and when they get it but i have never battled anything like this. this is 100% a new issue any help would be amazing cant take the stress of sick plants anymore

R u totally sure your ph is correct? That's what I always start with. Testing run off. Hopefully not the dreaded tobacco mosaic virus.

PH is good to go. tested over and over and over and over again. run off is 6.3 never herd of that b4 ill look into that and see if symptoms match up tho