What type of deficiency is this?

[LeonardLunte]

Strain: Jamaican Pearl feminized
Soil: BioBizz Light Mix
Nutes: BioBizz Bloom, Grow, Cal Mag
50% Humidity
150w LED
Ph: 6.0

Hey, Im growing 3 jamaican pearls, right now theyre in 7/8th week of veg and I want to send them into flower today. Up until now everything went perfectly smooth no spots or anything, but today I saw some tiny spots developing on two of the three plants and I need help identifying them.
I think its because of the nute mix I gave them yesterday. 2ml/L Bloom, 4ml/L Grow, .7ml/L CalMag. I fed them Bloom yesterday because I want to send them into flower today so I thought theyd benefit from the Bloom Nutes.

One of the two plants where I spotted spots only has very tiny brown spots which sort of look like a calmag def? (_20200622_200127.JPG)
The other one hastdarker spots on two leaves, I dont know what that could be. (DSC_0394 and DSC_0392
The first pic is just a picture of the three plants. Theyre about 90cm tall right now. (DSC_0396.JPG)
I also attached three pics I took a couple of days ago before the spots came, I lollipopped all three plants about a week ago.
(DSC_0370 and DSC_0369 are the ones which have the spots now and DSC_0371 is still fine.)

 

[Listersmeghead]

Strain: Jamaican Pearl feminized
Soil: BioBizz Light Mix
Nutes: BioBizz Bloom, Grow, Cal Mag
50% Humidity
150w LED
Ph: 6.0

Hey, Im growing 3 jamaican pearls, right now theyre in 7/8th week of veg and I want to send them into flower today. Up until now everything went perfectly smooth no spots or anything, but today I saw some tiny spots developing on two of the three plants and I need help identifying them.
I think its because of the nute mix I gave them yesterday. 2ml/L Bloom, 4ml/L Grow, .7ml/L CalMag. I fed them Bloom yesterday because I want to send them into flower today so I thought theyd benefit from the Bloom Nutes.

One of the two plants where I spotted spots only has very tiny brown spots which sort of look like a calmag def? (_20200622_200127.JPG)
The other one hastdarker spots on two leaves, I dont know what that could be. (DSC_0394 and DSC_0392
The first pic is just a picture of the three plants. Theyre about 90cm tall right now. (DSC_0396.JPG)
I also attached three pics I took a couple of days ago before the spots came, I lollipopped all three plants about a week ago.
(DSC_0370 and DSC_0369 are the ones which have the spots now and DSC_0371 is still fine.)

Hi Leonard,
Usually I set my ph to 6.4 for soil, setting it for 6 is a little low imo. This may cause nutrient lock out, which could explain your troubles.
Next time you feed the plant, try setting the ph to 6.4, and follow the bio bizz feed chart.

 

[CanadianJim]

You sure that's not a potassium issue in 0394? The colour looks off for magnesium, but that could just be the pic.
I always heard that you should stick with grow nutes for a week or so after flip to give her the right nutrients for the stretch.