After deep diving your journal, I noticed a few problems. First thing is that you are using bloom nutes during veg. This is leading to a Nitrogen deficiency. It's also giving you some P and K toxicity as the plant doesnt need much. On top of all that, your feed is a little hot. You really shouldnt be over 300-400ppms right now.
SOLUTION: Discontinue Florabloom and Novabloom until after the stretch period. Get nutrients like Floragro and floramicro (or whatever the organic equivalents are if that's what you're going for). I personally recommend the full GH Trio. Feed about a half of the recommended dosages for seedlings. Basic takeaway: a lot more N, a lot less P and K.
Please refer to my journal, I also have DWC and and use GH nutes. I have documented a few issues with nutes that you may face. Good luck my friend, message me anytime!