Help is this nute burn?

I am growing an auto blue mystic fem she is 23 days old and flowering..

she is growing under 11,500 lumens of 2700k cfl light she is about 10" tall and about a foot and a half wide..
I just administered her first feeding 3 days ago..

she is growing in soil the temps are around 81 82F but can go up to 88F.. the humidity is around 40%

Doesn't look like anything to worry about just yet, wait another day or two and see what happens.

You stay awake a lot at night, huh? Thinking?

the temps are too high, but plant looks fine..........so far