What deficiency is this?

[MjLSTboy]

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.

 

[Southernontariogrower]

calcium i believe. Calmag up! Or fe

 

[Partyslayer1]

calcium i believe. Calmag up! Or fe

Also double check pH. Try a microbe to keep roots healthy.

 

[MjLSTboy]

calcium i believe.

calcium i believe. Calmag up! Or fe

calcium i believe. Calmag up! Or fe

Thanks

 

[budman111]

calcium and Phosphorous issues

 

[Southernontariogrower]

my ph is 6.2 in veg, usually 5.8 in flower, changed to 6.5 the other day, in mid to late flower. Have you used a bloom boost yet?

 

[MjLSTboy]

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.