You mentioned you weren't checking your pH until 4 weeks that's a big no no and probably why you see defeciencys now. I see defeciencys in zinc, iron, sulfur and maybe potassium. You are also not listing any nutrients, you must be feeding with something? Make sure you add some calmag to whatever your feeding, use plain water every 2 or 3 feeds, check ph every time, check ph and tds runoff. 🌱👍