yellowing leaves is it nitrogen def?

Hello i have 7 plants 5 days into 12/12. Four are in cocoa and three in bucket bubblers, with two of the cocoa plants my leaves seem to be lightning but still having the dark veins. I did figure maybe nitrogen def but the bottom older leaves are still a deep green and i would of thought they would show first?? Is this normal and nothing to worry about as i know leaves do lighten in flower but this early?? They havn't turned yellow just a lighter shade of green anyway here some pics

I have overdone the feed the last time and i do have some nute burn but this is def a deficiency prob. And sorry for pics with lights on

As you may see the plants in the bubblers have all dark green leaves more or less

You need photos under white light, not HPS. That yellow light obscures the important tells. cn

Il carry 1 out in a min and take a better pic

Now iv took them out it doesn't look that bad at all,maybe im being a bit over the top looking for problems lol. On 1 of the pics it shows the deep dark green of the lower leaves

hopefully here are the pics

Looks ok from where i sit. anyone else see something i do not?

The fresh new groth, how does it look? does it grow properly? the leaves light green and proper shapes?

The leaves are all prpoer shapes and the new groth around the preflowers is fine. Mayb im bein over anal about wanting a perfect lush green plant but thanx for reply

Thanks for the white-light pics. Honestly, they look fine, but WHAT is that soil? It looks like sawdust. Could you be having a very slight pH issue? My other suggestion is a very slight magnesium deficiency. Topdressing with powdered dolomite is a two-birds one-stone approach to both. If you want something quicker, try 2 grams of epsom in 1 gallon of water, or your next nute feed. cn

its canna cocoa the good stuff and im watering with a ph of 5.8 with a 10% runoff

goldenbrown said:

its canna cocoa the good stuff and im watering with a ph of 5.8 with a 10% runoff

Click to expand...

That sets me at ease about pH. I like coco. I'd suggest a very slight supplement with epsom or cal-mag. cn

<edit> duh on me. This is the Hydro/Aero forum. My excuse: I came here viewing New Posts.

its canna cocoa the good stuff and im watering with a ph of 5.8 with a 10% runoff . I think i got some an revive lying about il throw a drop of that in the nxt feed im sure that got magnesium init

Yes its a cal/mag supplement so perfect for my needs, I only just remembered having it, i just hope its not gone off!

cannabiner thanx for the help mate cheers