Yellowing of my leaves, please save my crop

I'll have pictures in 1 hour, but till then i can only describe it.

There is a yellowing of the lower leaves on my biggest plant (still not that big 3 weeks old), And now my other two smaller ones are slowly developing it. Do you think its lack of nutes? are they old enough for them?

was reading the guide on how to diagnose.

Two came to mind Nitrogen deficiency and Magnesium deficiency

Will my 20-20-20 nutes take care of the Magnesium deficiency? Or do i need something else?

Many deficiencies are also due to PH as well... Or other factors i suppose, i do not claim to know it all... Make sure you have your soils PH in check before you go adding MORE of anything...

Less is more... =]

moon47usaco said:

Many deficiencies are also due to PH as well... Or other factors i suppose, i do not claim to know it all... Make sure you have your soils PH in check before you go adding MORE of anything...

Less is more... =]

Click to expand...

I have never used nutes on these plants, i was actually wondering if i should start?

PICTURES

How old are they?

If they are young they should not have any deficiencies of any kind... Are you sure there is no nutrient pellets in the soil you use... So yes more details please...

And...

Where is this... ??
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