Your moms have blown up fast since transplant, haven’t they? It doesn’t look like an N deficiency, and in organics you don’t really need to think of things like that…generally. There’s no easy fix in organics, so you can’t just give them N and things like that go away. Gotta cultivate better conditions in the soil or the rest of the environment because, this early on, there should be no reason why your freshly mixed soil should need any topdressing. They’ve only been in it for less than 3wks and it should be good for a few months without any extras.
Sometimes the interveinal chlorosis happens as a transition period from old soil to new, especially if they were fed synthetics before. The bacteria and fungi that converts the soil amendments into food for the plant’s roots need time to develop and get in the right balance. Sometimes issues like that are the result of the soil drying out too much. Sometimes it’s the result of too much water, but that will usually have the other telltale signs, such as droopy leaves and even droopier leaf tips. Sometimes it’s the result of too much light intensity. Sometimes it’s the result of cold temps or low humidity and poor transpiration. So check those other things and see if maybe one of those areas could be improved.
I generally trust the process and keep doing what I should be doing and see how it develops if I improve areas where my care of them has been at issue. If there’s initial issues in fresh dirt and I know I followed the recipe exactly with high quality inputs (not always possible due to stuff being unavailable), I assume they’re gonna work it out over time. If it persists, a couple tablespoons of kelp scratched into the top might help. An epsom salt foliar spray might help if it continues for more than another couple set of leaves. But, generally things like that work themselves out as long as you’re providing all the other environmental conditions within normal ranges of acceptability - temp, humidity, fresh air, wind, light, water.
Recently, I was unable to get my preferred compost (Oly Mountain or Malibu Bu’s Blend) and ended up having to get some Coast of Maine Lobster compost that, unbeknownst to me, was cultivating a huge fungus gnats colony. I’d done everything right up to then, but now I’ve got an explosion on my hands. Sometimes that’s just how it goes. Sticky traps galore and gnatrol to the rescue! Gnats can’t really cause too much harm; they’re mostly a nuisance. Oh well.