But the food in FFOF only lasts 2-3 weeks then you wanna start feeding.. and to above poster I AM SOOOOO GLAD SOMEONE IS REALIZING THAT YOU STILL NEED NITROGEN DURING FLOWERING
And welcome to one of the best forums and communities on the face of this earth.. There are some very intelligent people on here that are more than willing to help out.
No that's a myth, started by food companies lol plants still gobble tons of N during flowering. What do you think feeds it so its able to produce buds and all the little smaller leaves that surround the buds.
IMO doesn't look like the light is burning it but your ambient temp is too high but what you posted is good temps.. I would recommend feeding with a quality veg food that has a higher nitrogen content for a few feedings