please help me identify problems.

2 plants in 50 days old from seed, 20/4 light MH+CFL, organic soil mix with perlite. using GH trio for feeding at 400 PPM total in 150 PPM bottle water. using recharge and subculture once a week. i have sprayed with foliar feed i got from the market and fan leaves started to die, i haven't used it since. please guys tell me what you think ?

Honestly they look terrible. They look stretched out. Looks overfed.

Honestly they look really bad. You need to reset your thinking on feeding soil. If you buy a quality soil like Fox Farm Ocean Forest, all you need to do is water with no fertilizers for up to 30 days. With a good environment you can grow a lush plant in the veg state with nothing but water in that time.
Biggest beginner mistake is thinking more is better. More Nutes, More light. More water. I would consider going with 16 hours on 8 hours off during veg on your next grow.
Make sure your lights are not to close to the canopy of the plants.

stop the mutilation , its just cruel man
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Wow looks like everything is wrong here. Dont think they will pull through tbh best place in the nicest way would be to scrap and start again using a nutrient based soil and just water, cant go wrong

Nute burn and you didnt miss. Stop feeding for 2 weeks, flush the soil, stop foliar feeding and release the coathanger concoction you have there.