Hey so I have this auto flowering at the moment and I came back after a few days to see the buds are getting yellow tips and are pointing upwards, not quite sure what type of deficiency I’m dealing with but if you know would you kindly direct me in the right direction to fix it?
Are you giving you plants any pk boost? If not you really should it looks like a deficiency or it looks like maybe your EC is to high in your medium and need to be flushed out. Wash the medium with the solution you feed with until you get the right ec. Maybe get the runoff to 2.5/3 and you’ll be safe. 2.3 if you can.
Good luck my friend 😃😃
Toxicity and light burn i would say.
At same time - there could be many reasons , even overdrying and salt acumulation, lack of calcium, excessive nitrogen blocks uptake of calcium and so on ...