Magnesium deficiency?

[Trakyoto]

Hey, I’ve started to notice these yellow patches on my new grow. The grow is 3 weeks old ( northern lights) I’m growing in biogreen soil. Haven’t started nutes yet. Could this be magnesium deficiency? Didn’t have this problem on my last grow with the same branded soil. Cheers

 

[namvet25]

Add some cal/mag and a lite dose of grow nutes

 

[Trakyoto]

Add some cal/mag and a lite dose of grow nutes

Will do, cheers. Do you know how soon I should see improvements if that is the problem?

 

[namvet25]

Will do, cheers. Do you know how soon I should see improvements if that is the problem?

If you use organic nutes it might take a week or more synthetic nutes a little faster.

 

[Trakyoto]

If you use organic nutes it might take a week or more synthetic nutes a little faster.

Perfect, cheers mate