Not sure if this is the start of a nutrient defficiency or maybe the LED is too close?

Thanks namvet, I was hoping it was just due to the leaves beeing younger. Since this is my first LED grow I want to catch things early before Its too late.Nitrogen def usually starts at the bottom of the plant.I really don't see a big problem and they are newer leaves that may take a few days to fully green up.Keep an eye on it and if it gets worse let us no.