Deficiency during flower

[Mat1979]

Hi, I'm hoping someone can help me. I've been growing all mephisto for a long time now. They are under cob lights, in plagron light mix. I'm using tangs easy schedule which if your not familiar is sensi bloom a and b, carboload, overdrive and sensi calmag.

In veg everything looks good, but when they begin to flower, I believe (with limited knowledge and lots of research) that I get a nitrogen deficiency.

Can someone advise on the solution to this or a reason why it's happening.

Thanks chaps

 

[Animatey]

Pictures would help a lot, otherwise pretty hard to say.

I'd say unlikely it's an N deficiency on TaNgs schedule as sensi bloom has a lot of N for a bloom nutrient (more than their sensi grow even).

 

[dickfitzwell]

how about some pictures