New Grower 2nd grow auto green crack and blackberry

That's a calcium def in bottom pic. Slight nutrient burn in green crack, causing tip yellowing and twisting. Plants look good though , nothing to worry about . Whats your ppm/ec?
I don't have a pen to measure the ppm at the moment I've just been going off the drop test that comes with the ph up and ph down I didn't have any problems with my first grow so I figured I didn't need it but that'll be my next purchase
 
@Need4Weed @chefdave @archie gemmill just thought I'd let you guys know she really responded well to the upped cal-mag
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