Help with discoloration on leaves

[Ganggreen99]

Can anyone please tell me what this discoloration is I'm on week three in veg using Fox farm Ocean Forest soil. And I'm using nutrients Fox farm brand at 1/3 recommended strength. This just started happening this week and it's only on the edges PLEASE HELP

 

[nl5xsk1]

I don’t believe you need any nutes at this time. OF is a hot medium and requires no added nutrients this early

 

[ISK]

I don’t believe you need any nutes at this time. OF is a hot medium and requires no added nutrients this early

agree....they look over nuted