Lighting possible calmag?

[flynfish]

hey guys was going through my plant cleaning out old dead stuff and noticed a white film on the top of leaves. the bottom is crystals, but the top is a white looking film. could this be a calmag deficiency? if so can I foliar feed while I am in flower. only a few and I mean 3 or 4 tips are yellow.thx

 

[gone1]

I´ve never heard of a white film when you have a cal/mg def. Would be great to see a picture.
http://www.growweedeasy.com/calcium-deficiency-cannabis

 

[Rebel]

Yes definitely need a picture! Can you get us some detailed shots of your problem?

 

[flynfish]

ok so now I am officially an idiot was not calmag was frosty lol duhhhhhh