Need Help

my leafs are turning yellow and brown they get 10 hours of direct sunlight.Any clue? should i be feeding it? its about to be 4 weeks

That looks normal,hows the rest the plant look?Is that holes on the leaf on the left?Cant really see but looks like something is having a snack?

woah good eye buddy i didnt even see those holes..who ever is eating my plants..they are going to get it!

Whats the makeup of the soil?I use Fish Emulsion very hard in the vegging period,its organic and will not burn and really gets the plant on its feet.