50 Days Into Flower. Yellow and Purple Leaves.

Plant is 50 days into flower. This is my first grow and was wondering if everything looks ok. If it's not then what are some of the issues so I can get them sorted for the next run. Thanks!

my bc kush does the same thing towards the end of its life ....always lets me know its done when its leaves turn purple..

You have a Phosphorus deficiency. Purple on the leaves is a indicator of (P) deficiency. Purple stems, but not always.
Chalk it up as experience for the next grow.
IMO- your to late in flower to worry about it.
Your buds look good, you'll finish no problems,

Keep in mind Phosphorus deficiency, and Potassium deficiency will diminish yield.

Good Luck on Your Grow.

Thanks topfuel. Now I know for next time. I was running great at 200ppm of MaxiBloom for veg and ran them at 4-500ppm MaxiBloom all thru flower. Guess it wasn't enough.

I've upped the nutrients. It's getting worse, couldn't this be a nitrogen toxicity and not a phosphorus deficiency? Currently at 750ppm MaxiBloom and 200ppm KoolBloom liquid. Total ppm is 1050ppm or 2.0EC.

It's perfectly normal. Upping your nutes is a mistake and I see no real signs of deficiency.
Your plant is drawing the energy out of the leaves in a last ditch effort to use that energy to reproduce before it dies.

^ truth right there