Calcium deficiency or toxicity or something else?

[KingMarr]

Anyone know if this is this a calcium deficiency or a toxicity? Or it’s something else?

coco coir
5 six shooter + 1 smoothie
2200w LED

 

[Jean-O]

How often and what do you feed them? How far away is ur light? Temps and environment? Have you been to the infirmary for help? Mossy or waria could help you out. I've only used coco a few times and left it for Pro Mix Hp because of the issues that spawn from it but it does do great if you dial it in. At a guess I would have to say a deficiency but doesn't look like a cal mag def. Maybe boron, manganese. or Iron. Possibly a foliar spray could help you out.

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www.royalqueenseeds.com

Hopefully I copied that link right but it has pics of leafs with a variety of deficiencies that explain the symptoms and how to correct them.
You can some times get whats known as neut lock if you get too much salt build up in your medium but usually you can tell if your using fabric pots it will build up on the outside of the bag and look like a sweat ring in plastic bags you will get a yellow crust around the breather holes. Neut lock usually only happens if you feed every time and feed a lot. I don't see any burnt tips on your plants so I would guess your not feeding to much. Hopefully something in my rambling helps you out a bit and good luck!

 

[KingMarr]

Thanks for the reply I’ll definitely check out the link. My lights is around 32” away, usually gauge the feeding as time goes on but usually around 4 days. Feeding wise they’re getting A+B, rhizotonic, cannazym and calmag with a Ph at 6.4

 

[Waira]

- Mg defc mate,.... we need to figure out why. I need more info on feeds, ppm's going in and most importantly, the ppm and pH of run-off... if you're treating coco like a true soil, and not doing this, you're asking for troubles. coco is a specialized soilless medium, closer to hydro in many ways... it has a lot of do's and don't's, too many to list here... 15-25% run-off each time is recommended; this is how you monitor in-pot pH, check to see that nute salts aren't building up, and get fresh balanced nute solution in there; also this draws fresh air into the coco as it drains away, a bug benefit to coco and this mode of growing,....
If you don't do this, you need to do so now so we can assess why it's happening. We need pH and ppm going, and out to see if the pH is off causing a lockout, or if ppm's too high, another lockout by antagonistic uptake issues,... least likely, plain lack-of pending you input ppms....