Thank you all for the response. I suspected its calcium or potassium base on some pics and vids that i watched but this is my first ever grow so I needed some input from experienced growers. Thanks again. Hopefully i can save this girl.
Amnesia haze auto.
soil is ffof and foxfarm trio nutes.
Its in the 2nd week of flower. 3 days ago i notice the leaves are drying up with brown spots and its curling up and spreading slowly.