Deficiency's?

[Caniac]

My brother has 4 plants in 3 gallon pots all are in promix hp amended with gaia green power bloom. He waters when the plants are dry . There's lots of wind and sun. He doesn't ph but hasn't the entire time and our city water is right around 7. Two of the plants look ok and 2 look terrible. Any ideas?

 

[Beachwalker]

Can you get a close-up on the 4th picture I can't tell if it's calcium or potassium deficiency but it's likely caused by the high pH locking something out? Are these all the same strain?

 

[Caniac]

The 2 healthy ones are pink kush. The other 2 are Cinderella 99.

 

[Beachwalker]

My guess would be the other two are more susceptible to the high ph and are showing the issue, promix likes 6.2

Can you get a close-up of those brown spots on the leaves

 

[Caniac]

Best pics I can get right now. I'll adjust the ph and see what happens the next week or so. Thanks for the help

 

[Beachwalker]

Best pics I can get right now. I'll adjust the ph and see what happens the next week or so. Thanks for the help

Couldn't tell from pic if it was a calcium issue or possibly something fungi, looks more like a calcium issue from what I can see, it may well straighten out when you correct the pH

 

[Caniac]

Ya he is sending me pics from his phone not the best...hoping it's not fungal.

 

[Beachwalker]

Ya he is sending me pics from his phone not the best...hoping it's not fungal.

Probably not fungal, probably straighten out the pH & those plants look they're going to green back up? I would catch it ASAP though, good luck