Whats wrong

J

jokefox

Active Member
Without knowing anything about my setup what is your first impressions that is causing this?
 

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I will say if it is a newer leaf it is from too much calcium and if a lower leaf too much mag.

But without seeing the whole plant and knowing all of the information we can't help much.
 
Setup

2x 96 reflector marshydro led
2x4x5.5 custom tent
I huge exhaust fan.
24 celius during the day. 10% rh
5 weeks from seed
3x white widows in 5gallon bucket coco coir with 40% perlite
H and g most of the line minus amino and the seaweed stuff.
Feed feed water at 40% of the feed chart that comes with it.
Hard water 260ppm from the tap but i still add 2.5ml calmag per 2 gallons.

Im thinking to much calmag and in locking out phosphate
 

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Did you cal/mag charge and pre soak your coco ?

And 5.5 is to low for coco and you might be locking out the cal/mag.

If it's not continuing it might of corrected itself.
 
No pre charge. Just a medium flush.

And what is ideal? 5.8ph?
My run off is about 6.5ph i get .3 gallon run off
Ill water either everyday or every second day.
When i do everyday i use 2 gallons for 3 plants total and get back 1 gallon in run off total
 
I would feed 5.8 - 6.2 I prefer 6.2-6.5 Flux . I would all so increase cal/mag to 5 mil per gallon. That will probably put your run off to neutral .
 
You won't get a correct run off ph measurement in coco. You should always feed with coco and never use plain water. If you're using plain water instead of feeding you'll mess up your coco's ph. With coc 5.7-6.0 is cool with 5.8-5.9 your goal. But if you tap water is at 250+ppm that's high and who knows what's all in it. I'd recommend finding out what's in water or start usin RO water.
 
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Ro is not an option right now.
My only real option for better water would be one of those attachements for the tap or a low pressure diy kinda thing.

The problem is only in one of 3 plants though
 
You would do best to know what is in your water but I would try no cal mag first with the nutes at a lower concentration every watering.

If I water 2x per week I add up the average weekly amount they have been needing and devide by 2 and feed every watering.

3x devide by 3.

If the mag issue continues then I would add about double the cal mag you were using once and wait to see the results. It may or may not be antagonized by your water.

My well water never needs it in a limed mix. But coco can have different needs as it locks up cal and mag and holds it very tightly.

That is why an above poster wisely asked you if you pre charged your soil.

Maybe an experienced coco grower could expand on this as I grow in peat.
 
Last edited:
MichiganMedGrower said:
You would do best to know what is in your water but I would try no cal mag first with the nutes at a lower concentration every watering.

If I water 2x per week I add up the average weekly amount they have been needing and devide by 2 and feed every watering.

3x devide by 3.

If the mag issue continues then I would add about double the cal mag you were using once and wait to see the results. It may or may not be antagonized by your water.

My well water never needs it in a limed mix. But coco can have different needs as it locks up cal and mag and holds it very tightly.

That is why an above poster wisely asked you if you pre charged your soil.

Maybe an experienced coco grower could expand on this as I grow in peat.
Click to expand...


What mag issue? Those are cal spots IME. I currently have plants with a calmag issue. I received plants in coco from a friend and they're used to more cal and mag than my well water has. After a couple of feedings and waterings they started to develop some cal spotting and interveinal chlorosis from mag def. I've since started adding the calmag they need, but I've got great examples of leafs exhibiting each type of deficiency.

I grow in peat with a bit of time release nutes in the mix, so I usually never deal with deficiencies, but these plants are in coco and hungry for calmag. I'll post pics when I can, if I remember LOL.
 
a senile fungus said:
What mag issue? Those are cal spots IME. I currently have plants with a calmag issue. I received plants in coco from a friend and they're used to more cal and mag than my well water has. After a couple of feedings and waterings they started to develop some cal spotting and interveinal chlorosis from mag def. I've since started adding the calmag they need, but I've got great examples of leafs exhibiting each type of deficiency.

I grow in peat with a bit of time release nutes in the mix, so I usually never deal with deficiencies, but these plants are in coco and hungry for calmag. I'll post pics when I can, if I remember LOL.
Click to expand...

I did say cal or mag in my first post above. Sorry. I just would want to know if it is too much from my water before I add more issues.
 
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