Is this Mold Or a Deficiency?

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honeybbygrw

honeybbygrw

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Is this mold or a deficiency
Is this possible mold? Or a plant deficiency?
I’ve yet to give my week 2 veg any nutrients only water so it’s not burn ,

It appeared over the last two days wanted someone’s opinion before I watered them again.
 
RookieBC

RookieBC

200
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So glad I just grabbed a bottle of CalMag! Lol thanks so much! I have another quick question
View attachment 1113405Do you think this little lady is in need of cal mag and feeding as well?
Yup those brown spots are normally calcium def. I use it in every water and feed not a lot maybe .25-.5ml per litre normally when growing in Coco i add more as you need it. Also LED cause Magnesium def infant remember the science but if you google it you'll see
 
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