I wish you were here

I dont know what to do but I feel like is ok. In a tent with a big light , lots of soil and everything seems perfect, but things aren't fast or at least as fast they have before

Need way more info. Looks like a mg deficiency starting but most deficiencies are caused by over abundance not too little and or ph issues

Need basic info to determine the problem

Room temperature?
Ppm?
Ph?
Light?
Humidity?

Are you controlling all of them?

A Light mag issue from what i can see from your pics..
Need more info
What are you feeding them?
What soil are you in?