They‘re hydroponic and I use Advanced Nutrients PH perfect Sensi grow A&B, voodoo juice, B-52 & cali-mag. They are in their 2nd week of veg. Everything was all-right since last week there was some little brown spots on some of the leaves which looked a lot like calcium deficiency (that’s when I started adding cali-mag...) but now it’s worse and I don’t know what to do.