NEED ADVICE ASAP( WITH PICS)

Ok so i have a few grows under my belt but this has me stumped. Im growing 3 ww x big bud 2 greenhouse seeds th doctor and 1 northen lights x big bud under a 600w mh bulb brand new about 20 inches above the tops they are in unfertilized soil and havent been given any nutes yet but they seem to have nute burn any idea what has happened and what i can do to rectify the problem thx guys

20 inches is close for seedlings. Whats your soil?

Bog standard cheap soil nothing added

And whats the temps? Do you have airflow? Fans?

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Yeah 1 5 inch inlet and 1 5 inch out and oscilating fan for breeze temps are 28c day period and 23 23c night temps

R1b3n4 said:

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How long did it take you to find that? Like not long at all i assume?