Manganese or calcium deficiency?

Chow13

Active Member
I'm gonna guess nutrient lockout from to much food.( leaf tips curl down like that usually from nitrogen toxicity ) Another sign is the dark green shiny leaves.

Got a EC/PPM pen if not get one as this will help you figure out if your over/under feeding.
You test your feed and compare it to the runoff to see if its over feeding. It should be close to the same EC/PPM going in.

What are you feeding, how much and how often? Synthetic or organic nutrients. What medium, soil or coco.
When you water do you water until you get runoff to avoid salt buildups?

If your feeding with your watering(not top dressing) and synthetic(not organic) then I would do a flush and adjust your feed to be less.
**If your organic then you can wash away the good microbes in the medium or if you top feed then you can release more nutrients which can make things worse.

measure out 3x your pot size of water and adjust the PH to what it should be in your medium.
Run PH water through until you get a minor runoff. Wait 10 min to soften any salt buildup then run the rest of PH water through.

Now that you have flushed out all/some of the nutrient buildup you want to do a regular feed right away to get the correct level of nutrients back in the medium.
 

Jsnbaxter

Well-Known Member
Hi sorry the shiny leaf is because I foliar sprayed before the picture. Last watering was 1/3 dose fish seaweed with cal mag full strength. I don’t have a pen. This is a soil grow no top dressing. Watered until good amount of runoff. Water always ph to 6.5. I will try what you recommend. Thank you

I'm gonna guess nutrient lockout from to much food.( leaf tips curl down like that usually from nitrogen toxicity ) Another sign is the dark green shiny leaves.

Got a EC/PPM pen if not get one as this will help you figure out if your over/under feeding.
You test your feed and compare it to the runoff to see if its over feeding. It should be close to the same EC/PPM going in.

What are you feeding, how much and how often? Synthetic or organic nutrients. What medium, soil or coco.
When you water do you water until you get runoff to avoid salt buildups?

If your feeding with your watering(not top dressing) and synthetic(not organic) then I would do a flush and adjust your feed to be less.
**If your organic then you can wash away the good microbes in the medium or if you top feed then you can release more nutrients which can make things worse.

measure out 3x your pot size of water and adjust the PH to what it should be in your medium.
Run PH water through until you get a minor runoff. Wait 10 min to soften any salt buildup then run the rest of PH water through.

Now that you have flushed out all/some of the nutrient buildup you want to do a regular feed right away to get the correct level of nutrients back in the medium.
 

Chow13

Active Member
No, Dont. Fish seaweed(organic) and soil(has microbes) are both risky with flushing.., If your just feeding fish then it might be a K as fish is 2-3-1. It would be better to amend your feed to have more K in it. a bloom booster. The excess N seems to be from an unbalanced feed.
Mid Flowering you want more of a 1-3-2 ratio. Once The stretch has finished she eats a lot less nitrogen and it can be easy to get toxic level's.
 
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Jsnbaxter

Well-Known Member
No, Dont. Fish seaweed(organic) and soil(has microbes) are both risky with flushing.., If your just feeding fish then it might be a K as fish is 2-3-1. It would be better to amend your feed to have more K in it. a bloom booster. The excess N seems to be from an unbalanced feed.
Mid Flowering you want more of a 1-3-2 ratio. Once The stretch has finished she eats a lot less nitrogen and it can be easy to get toxic level's.
but this is vegetative stage and this doesn’t look like potassium deficiency to me. It’s fish plus seaweed
 

Chow13

Active Member
My suggestion was for a "Synthetic" grow which does not require microbial activity in the soil for the plant to get the nutrients it needs. I have very little experience with organic grows and don't wanna mess your plant up.
My buddies that grow organic say to never to a "Hard" flush like I explained above and that over feeding is best solved by a "Soft" flush which is to stop feeding until EC/PPM levels get back to normal.
 
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