Does this look like excess Calcium?

[dc902]

(1st pic is yesterday, 2nd is today)

Forum Stomper Autoflower D47 in 5g living soil with organic ammendments.

At first I thought this was a deficiency, but as it progresses it looks more like a problem with excess Calcium.

Can any experts/anyone knowledgeable chime in? I'd appreciate the help!

 

[CTABB83]

Try these. Hope they help, I'm a new grower myself. Last pic is my OG Kush about 1 month veg. Debating when to flip, I'm using a 2x2 tent so space is limited unfortunately. I'm glad it's not an auto flower atleast.

 

[mysticepipedon]

(1st pic is yesterday, 2nd is today)

Forum Stomper Autoflower D47 in 5g living soil with organic ammendments.

At first I thought this was a deficiency, but as it progresses it looks more like a problem with excess Calcium.

Can any experts/anyone knowledgeable chime in? I'd appreciate the help!

Slight Mg deficiency.

The plant drew Mg from the lower leaves, then the lower leaves burned, because Mg deficient lower leaves burn under LEDs. You'll note that the leaf parts that are shaded from above are not burned.

 

[Moshmen]

Slight Mg deficiency.

The plant drew Mg from the lower leaves, then the lower leaves burned, because Mg deficient lower leaves burn under LEDs. You'll note that the leaf parts that are shaded from above are not burned.

+1 I'll add to it by saying from my experience the calcium is there but ya need more mag use epsom salt addabout a gram per gallon to next feed - if you use cal mag I believe it will make it worse.

 

[j1sonbrother]

Slight Mg deficiency.

The plant drew Mg from the lower leaves, then the lower leaves burned, because Mg deficient lower leaves burn under LEDs. You'll note that the leaf parts that are shaded from above are not burned..

I had some mag def a few days ago, when I was using gh3 parts and calimagic at that time.
(15ml calimagic + 12ml micro+12ml grow +12ml+bloom into 3 gal ,then extra 2gals of water was used to dissolve to 1.1-1.2ec)
Later on,I adjusted the calmag to 2.5ml/gal based on gh Coco dtw's feeding chart. ( 4 gallons of water containing 5ml of calmag) and added 1.5g epsom salts of nutrition solution(4gals of water containg 3g of epsom salts ). plant seems to have recovered a lot, but I noticed some yellow spots, I'm not quite sure that this is calcium def ?, or not enough epsom salts.
(2.5gal Coco hydro with led ,Ph,ec，vpd including runoff, are within the standard range )
Need some suggestions,
@mysticepipedon
@Moshmen
Thank you so much .

 

[j1sonbrother]

After

 

[Neuro]

Not familiar with your nute line but you can definitely get Mg lockout in flower if you're pushing Ca or K too hard. Often you'll have plenty of Mg in your soil but it's not available to the plant.

 

[j1sonbrother]

After plants

Not familiar with your nute line but you can definitely get Mg lockout in flower if you're pushing Ca or K too hard. Often you'll have plenty of Mg in your soil but it's not available to the plant.

Fully agree，but this is not soil grow ,man.