Is this Mold Or a Deficiency?

[honeybbygrw]

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.

 

[honeybbygrw]

View attachment 1113299 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.

some more pictures of the plants

 

[RookieBC]

Deficiency looks like it needs CalMag and food

 

[honeybbygrw]

Deficiency looks like it needs CalMag and food

So glad I just grabbed a bottle of CalMag! Lol thanks so much! I have another quick question

Do you think this little lady is in need of cal mag and feeding as well?

 

[RookieBC]

So glad I just grabbed a bottle of CalMag! Lol thanks so much! I have another quick question
View attachment 1113405 Do 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