New strain... is this Calcium defficiency?

Started an Aya. purple in soil blend I've made myself, which has worked perfectly for previous strains.
Never come across this symptom before so would like some advice!
Is it Calcium deficiency???


Thanks.

Cannot evaluate under unnatural lighting

cannabineer said:

Cannot evaluate under unnatural lighting

Click to expand...

Natural light pics

Good reference chart. Been growing for a while and I still use it from time to time.