Start of a deficiency?

[EYE69MYSELF]

Hi everyone! I have some purplish coloring starting to show up of some of my leaves and starting on some of the tips of the leaves closer to the buds.

Not sure if it’s the start of something or if it’s just a natural color change from temps getting colder. Temp drops to about 68 at night.
I also have some of the lower fan leaves yellowing and dying off. Could be natural i guess.

She’s growing and building buds still and looks good everywhere else to me but is my first grow and just going off what I’ve seen and read.

[PharmerBob]

Ohh pretty fall colors

[EYE69MYSELF]

She is beautiful. I’m guessing it’s all normal then?

[neofirebird]

Looks good to me.

[EYE69MYSELF]

Thank you both @neofirebird and @PharmerBob!
Just paranoid still.

[aPotforPot]

The yellowing and losing of fan leaves is a totally normal and natural part of her aging process. A cannabis plant’s fan leaves can and will turn a whole rainbow of colors over the course of her life depending on strain and growing conditions. She’s beautiful!

[EYE69MYSELF]

Thank you! Only pH’d water until last watering i gave her a very light dose of Cal-Mag.