SOIL Leaves burning

[Dreco]

Almost all the tips of my leaves seem to be burning and splitting and the plant has seemed to slow down growing. Kan anybody tell me what’s going on?

2x6 grow tent with 2000wled lights, a pretty solid air system and a humidifier. I run a 18/6 light schedule, water 2-4 days apart. 60-70% humidity 74 degrees temp. Organic water only soil, currently lst

 

[Tersky]

Well first off i have to give the speech.

When asking for help PLEASE give us the info of your grow. Many problems look similar so knowing what your setup is (nutes, medium, lights, ph ect) will be the only way we can confidently give you the best help you need. Also there is a diagnostic page on this website that is SUPER helpful in diagnosing a sick plant.
https://www.growweedeasy.com/cannabis-symptoms-pictures

That said, i see several potential issues, but not 100% on them because i dont know anything about your grow.

First pic is see nute burn and some possible clawing which could be from nitrogen toxicity (refer to link above) or pest issue.

Second pic i see cupping which is an indication of either heat or light stress or possibly wind stress. I also think your leaves look "plump", for lack of a better term, which could indicate overwatering but this could just be my imagination.

Like i said tho, i cant give you any definitive answer, but knowing nothing about how you are treating your plants, this is what i see

 

[Dreco]

I update the post thought i put it on there