Help guys im getting something that i don't know

[DSmoke]

Hello hows everyone doing? I hope yall are doing well and having good holiday.

This plant is shoing these brown spots anyone has any idea what the problem might be??

I Thought it might me calcium sufficiency so i gave it that a few days ago and it only gotten worse

Its northen lights auto grown in soil 7th week old

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[Xena]

Pictures in natural light, more info, PH, medium, nutes, light and light height. All that plus a few things I forgot about would help ppl tell what the problem is

 

[DSmoke]

I bought a soil ph meter online and its coming on the way so i could measure the soil ph
Using 1200 w led about 15 inches form the top of this plant

 

[DSmoke]

Im using ap soil with ph on the bag written 5.5-6.5 and i water with regular tap water its ph 8

 

[RetiredGuy]

According to the tutorial on the main site you should be adjusting the PH to 6.5 before watering. At high pH some nutrients will not be available to the plant.

 

[Farmbuck]

Your PH is too high, should be between 6.0 - 7.0 for soil. And like Xena is saying in natural light please.

 

[DSmoke]

Har sisters are green and healthy this one is the only one ahowing these brown spots
i can't get it out for natural light becatse its too bushy and plants growing into each other

 

[Rwise]

Your water is the issue, PH it to 6.5