Diagnoses please!

Been pretty much only watering her with 2.5 ml cal mag in half a gallon. In happy frog soil. She is 2 months into Veg. Started noticing this discoloration and these spots. Any advise would be nice! Thank you
 

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Fed her yesterday and this is what she’s looking like now. The color is scaring me.
 

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Been pretty much only watering her with 2.5 ml cal mag in half a gallon. In happy frog soil. She is 2 months into Veg. Started noticing this discoloration and these spots. Any advise would be nice! Thank you
Shes phosphorus hungry! What formulation of cal mag? Nitrate, sulfate, other?.....pH?
But a complete grow formula is likely needed, and would have the higher P+.
 
looks better, if new growth looks vigorous then keep doing what your doing. I hate adding supplements to mostly dead soil, It can be hit and miss, your plants roots can hit pockets of rich soil from time to time that can throw things off.
 
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