Help diagnosing these seedlings

Variables: started in Promix HP from seed, both sprouted 5/14, given only water until 5/24 & 5/27 respectively, transferred into DIY micro octopots running pro mix HP + added perlite, spider farmer sf1000 @ 30" 55%, 75F 55%-60% RH, at day 10 when transferred I precharged the substrate with AN Grow A/B/B52/Voodoo/Pirhanna/Tarantula at 50% recommended seedling doses and filled the rez at 75% dose. The 1st pic is a NASC white label White Widow Fem and has been showing these stress signs even before the transplant, the 2nd is whatever ILGM wants to call NYC Diesel Fem, and has been pretty damn strong until about this week when its showing slight yellowing I've been chalking up to just being hungry until the roots finally hit the rez and can take what they want, but if you look at the top 3 fingered leaf it has a similar discoloration/malformation to the WW in the same nodes and I can't figure out what it is. Im a complete noob growing under LEDs, and have had dozens of successful harvests over the years under HPS or outdoors but im having a bitch of a time getting this one right. I have 2 other seedlings in there looking nice and green but starting the similar pale yellow in those lower 1st leaves that looks like it's N deficient but even in a soil less mix strikes me as odd this early in their life. Any ideas? Overwatered or Light Stress maybe?

nute excess not deficiency, dial it back a bit they’ll be fine.

I was wondering that my self because the tips on brand new growth were yellowish, it just strikes me as weird considering I started completely inert and soil less. The part that has me confused is that strange pattern that almost looks like scales, it's not exactly chlorosis it almost looks more like it's bleaching and I've never seen excess cause that before

Oh shit you're right, but not for the reason I thought you meant. My tent VPD is way too high, they were all fine pretty much in normal water until they got exposed to the low dose nutes, but VPD at like 1.5kpa was pushing those little seedlings way too hard. So now my question is, am I seeing the effects of excess Ca locking out everything else as a result and how should I correct?

Unless you have a compelling reason to do otherwise, it's best to stick with the A/B nutes and skip all the superfluous additives; they cause more harm than good -- especially at the seedling stage.