Yellow tips on new growth! Bad? Pics

Master Kush has yellow and some bright green tips (assuming soon to be yellow) on new growth! I'm a little concerned so I seek the council of the great LED vets... here's some pics and thanks in advance, any help would be appreciated!

Day 31 of veg (counting from day I put the seed in soil)
Blackstar 240w Veg model about 12" from top of plant
Subcool Super Soil w/Roots Organic (not 707) base
Last watered with 56oz incl. 4ml Liquid Karma on 8/11
No other nutes have ever been used.



Closer look at the issue

Soil could be a little "hot" , not quite sure of its complete analyses. looks nice and stout, with no stretching. most likely slightly over fer-ted. When young most super soils have plenty of everything needed. She will be fine, lay low and let her breath a little.

Maybe the beginning of nute burn.

Thanks for the replies. No Liquid Karma for her next time!

It could also be the start of Mg deficiency.. Good luck with her though, she looks beautiful non the less.

eventually what it was, nute burn or deficiency ?

yea id say nute burn starting you should flush it out maybe