New Grower leaves yellowing

[bunko]

Don't know what's going on with my leaves. All my autos leaves are turning yellow. Any advice will be appreciated. Thanks

 

[skrewg314]

How far along are they? Are you feeding them?

 

[Nam80232]

Two things jump to mind, 1 their nearing there and and are about to have you harvest them, 2 not enough nitrogen. Hope it's the first not the second. Any spots or anything on the leafs?

 

[bunko]

How far along are they? Are you feeding them?

They are 42 days from seed, and I was feeding them 1/4 tap super bloom, and 10ml of canna Terra flores in a gallon. Started getting white tips on leaves so I stopped the ferts for a week and this happened I think

 

[bunko]

Two things jump to mind, 1 their nearing there and and are about to have you harvest them, 2 not enough nitrogen. Hope it's the first not the second. Any spots anything on the leafs?

Seen some small black spots on one leaf

 

[auto420grow]

I'm 90% sure that's magnesium deficiency

 

[auto420grow]

maybe 75%

 

[Nam80232]

What's you ph. Mag def. usually shows with rust spots first in my experience. But ph reading would clear a lot up.

 

[auto420grow]

actually yeah your ph is probably too high

 

[Nam80232]

With the pic of your leaf where part is yellowing and not the other part lends me to think about iron deficiency. They look rather pale, not really yellow. What is your soil mix?