Sick Plant Yellow cruling leaves

Yeah about 5 weeks in will have to get some salts will try thanks mate 👍 

  Knowing the PH is crucial, if the PH is off and the water that your using isn't PH'd then anything else you add or do is just a shot in the dark. Just a simple liquid test kit from the fish store will give a better idea than nothing. But make sure your input water PH is good especially with living soil, once this is correct the living soil can work the way it's suppose to.

 Just my thoughts, I hope you get things sorted, good luck man. 🖐️    I was told to keep mine at PH-6.50-6.85, this is the sweet spot. 

Like Monkeydo posted above ..It seems like your light has saturated the photo making everything a tint yellow . Or is that what the plant really looks like ? 

Any better

I can't tell from the pics,  sorry. Id start with PHing the h2o first that seems to be at the root of a lot problems,  no pun intended. Also there's an app called growcush, tried it just to try and see if what I thought was my issue was my issue,  seemed to work fine. Good luck

those new leaves look pale, when you took these pics was it at the start of lights on?

I have attempted to colour correct the pics you posted, hope it helps diagnosis

Id agree with the above suggestions but Im going to assume your soil is wet right now. They are most likely not drinking much in this condition. If it is you could top dress like Bubble said, just wait to water it in later.  If you cant water yet, you could foliar spray epsom salts and or a worm casting extract during lights out.

Thanks @southsilly, that’s a big help. Im falling into BubbleHok’s idea based on those pictures. Epsom salts spray and a light top dressing.

Not sure where you are at with this right now, but its clear there are lots of people who would like to help.  Trouble is, there are several things that can cause these issues, and without more specifics to go on, it is going to be impossible to narrow it down to get to the cause.

Maybe this will help:
Yellowing at the top of the plant as shown in the adjusted pictures is a classic indication the plant is low on iron OR manganese.  If your soil recipe is a good one, but your pH has increased from giving tap water that has not been pH adjusted, then Mn deficiency is the likely issue due to pH lockout.  If you have very pale leaves, maybe almost turning white in extreme cases, then its likely iron.