Mag def or overall nute def?

[loftgrowsoldier]

Hi All, any help or thoughts appreciated.
I have a grow journal going on in the indoor section, under gntelos loft grow for a bit of background info.
Basically ive been a bit hesitant to feed my plants as a.couple of weeks ago i gave them a firs feed of biobizz grow and Algamic but was a bit soon and ended up burning them(im growing in tropic bat mix) Anyways the last week or so they have had just plain water and a very week solution of biobizz grow and bloom....my gut instinct is i should have given them nutes again sooner..as they have really started to flower and clearly needed food. Yesterday i gave them 1ml grow, 2ml bloom, 2ml algamic, 1ml shogun calmag per litre....
You can see on the top right plant what looks like a clear mag defeciency, again any help or thoughts appreciated.
LIGHT- GNTELOS 0008
SOIL - TROPIC BAT MIX
POTS-11 LITRE RHIZO
WATER- PH 7
SOIL RUN O PH 6.9
NUTES- BIOBIZZ RANGE

 

[karlkutta]

I would think your pH is high. Looks like a N deficiency to me but I'm not the expert. With the pH that high I think they will have a touch time taking up nutes. I'm usually trying to be between 6.25-6.7 in my soil grow..... Just saying though because I'm not the expert.

 

[KonopCh]

My bet is on Ca and P, mostly because you're in flowering and plants needs more of those nutrients at that age.

 

[Waira]

we need more pics of affected leaves, closer shots,...whole single plant too please.... preferably in normal light, LED/COB/HID make for lousy color rendering....
I'd say that looks more like P defc.,... look into getting a bloom booster, something with richer P and K, minimal N....

 

[Arthur]

Phosphorus is my nemesis.... it sneaks up on you imitating other deficiencies...then bam...

I'm guessing P here too.

 

[loftgrowsoldier]

Thanks for replys all! pretty sure now it was a p deficiency with a little N def and mag def thrown in! Was taken by surprise at how quickly they turned there energy to flowering and i simply didnt supply them with the nutrition they needed quick enough, They seem to have responded well to a good hit of Bloom and some Grow. cheers again.