Hello first time grower here (obviously from the question I will be asking 
)
Is this unevenness normal ? Or is that starting sign of something wrong with the plant ?
I also overshot with the watering different sources recommended different dosage , but I guess it won’t kill the plant if I will stop
Here is URL from my growlog you can see discoloration pretty clearly in the latest picture
Thank you for your help !
Welcome @161 1 liter of water is already a lot for a seedling. At this stage, the plant absorbs water almost exclusively through its leaves. The humidity is good as it is. But the soil must dry out so that it is well aerated and the roots can grow better. They should have to search for water to grow vigorously.
I saw that you have a 100 watt lamp. Is it dimmable and at what distance do you currently have it? The plant looks quite stunted.
Thank you ! 
Yes I will water more conservatively in the future , I was planning to water around 330-500 ml but then I read somewhere that its better to water more and I panicked I guess ..
I have 100W dimmable led from Viparspectra P600 . I set it up like the manufacturer recommended in the manual which is 50 % and 40, 6 cm from top of the flower pot .
I also have second plant which is different strain and it doesn’t seem to have as much of a discoloration (photo included)
Thank you again for your help
I
Maybe you should follow your plan 
One Liter is way too much.
Stop watering for a while. Let the first earth layer dry out a bit. But have the seedling under control.
Then next watering, around 200-300ml
Everytime a bit more watering.
Small plant, small thirsty
Big plant, much more
And maybe I missed it. What pot size?
I will every mistake is an opportunity to learn
the pot is 5,7 liter
