I’m about 2 1/2 weeks into flower, and I have a few of the fan leaves changing colors. Should I be worried?
Just looks a little hungry. Double check your ph is in proper range for nutrient uptake and you’re feeding properly for stage of growth you’re in. They will usually look like that from not getting enough nitrogen.
I add a over all picture of the plant would be bestcant tell much from one leaf
But @dbrn32 has you covered