I’m gonna say it needs a feed bump.
Reason IMO :
Those affected leaves are early set single blade leaf. They become expendable as plant pulls nutrients from them first.
Also, bump power up. More light , more growth.
Tip:
Add more fresh HF soil on top and just water that in. You will not have to measure anything since soil medium is what it is accustomed to. NO guessing nute ratios ( amount of this or that ). Later , as plant gains vigor and size … you can run the GH line if you choose.
Final Tip : Try not to hyperfocus on every blemish or color . Plant will still begin to green up as pigmentation builds in plant. Too easy to F up on things by throwing bottles of product at it. Calnag can be covered by just using Tap Water - just as you would if a houseplant was on same mix.
Bonus tip : You can go get a bag of FFOF ( ocean forest ) Top dressing with this mix. It is more nute dense than HF. And that alone will recharge that base container soil you are using .
Easy Peasy.
Remember it’s just a plant - it doesn’t need over the top Nute Dosing. Keep things simple and let this young plant find its way in the host medium you are using.
