Nute burn?

I am concerned about some darkening corners on my leaves is this the dreaded nute burn I hear so much about?

Also the inner of on of my plnts is slightly yellow. Both plants are darker towards the outside of the leaves and lighter towards the inside

Hopefully the pics are good enough.

you should not use any nute now your plants are to small

if you feel the need to use some thing you could use this liqufied seaweed but i would not feed them any thing for a while really

unfortunately not knowing I used soil that has some fertilizer within the mix. What I need to know is if this is nute burn will my plan recovr from it by iself or should do some sort of flush?

edit - also i used a super-dilute mix of bloodmeal and pl food (like 1/6 of suggested mix) and sprayed it lightlythrough a bottle.

Their way to small to worry about flushing. I would give them 30 days till you worry about nutes.