Almost looks like Phosphorus Deficiency. @Myfriendis410
He is going to need more information than just a photo. You need to fill out a Support Ticket. 
Start a Grow Journal but this link has the info for what is needed. Support ticket
My first thoughts being an outdoor grow looks like bug damage.
Support Ticket
Strain; random seed
Soil in pots
System type? Na
PH of runoff or solution in reservoir?6.3
Nutes. Fox farm trio
Outdoor
Temps; NA
Humidity; NA
Ventilation system; NA
AC, Humidifier, De-humidifier, NA
All I really do is feed than water every week and I leave him in the sun
HIM??? are u trying to produce SEEDS?? I am strictly outdoor grower never ever have I or will I grow indoors that being said I’ve experienced masses of different kinds of bugs, this looks like either the little worms or those damn green bugs… can you get a closer up picture? Is this the only damage? You don’t give it any kind of fertilizer or add in nutrients?