Can Anybody Diagnose These Sick Plant?

[Yourt16]

Hey everyone I have some yellowing plants new growth, and fan leaves are yellowing from inside out. some are worse than others. About 4 ft tall 5 gal pots in coco running gavitas at 600w. Room temp 73-75 humidity 70%. Co2 ppm 1500. Running botanicare cns17 and cal mag. Will post pictures in a little bit. Any help would be appreciated thank you

 

[tinderthumbs]

going to need to see some pics

how often do u water??

 

[Yourt16]

Some pictures i just took

 

[Yourt16]

going to need to see some pics

how often do u water??

Just transplanted into 5 gallons but about every 3 days

 

[tinderthumbs]

lots of peoples plants looking like this id go with mag def with a salt build up

 

[tinderthumbs]

was just reading something saying when the edge of the leafs raise up like that they trying to dissipate as much water as they can from being under watered but cant bc of toxic salt or heat

u said u using coco and u cant let coco dry out or u hurt them

edit

 

[MIMedGrower]

Pretty sure it is an iron deficiency.

https://www.google.com/amp/ilovegrowinginvalid.com/marijuana-nutrient-deficiency-iron/amp/

http://www.growweedeasy.com/iron-deficiency-cannabis

 

[tinderthumbs]

http://www.growweedeasy.com/magnesium-deficiency-cannabis

 

[MIMedGrower]

http://www.growweedeasy.com/magnesium-deficiency-cannabis

Mag shows on lower leaves first.

But I have been known to be mistaken :-)

 

[tinderthumbs]

yah mag is on older leafs

 

[tinderthumbs]

I would think tap water would have all the iron in it you would need

 

[MIMedGrower]

Either way. If it is fresh soil then maybe the lime has not buffered the ph yet. It tends to take a week to get to the mid 6's after watering. Many manufacturers suggest un ph'ed tap water to help charge the soil buffering rather than ro water for the first week regardless of normal regimine.

 

[MIMedGrower]

I would think tap water would have all the iron in it you would need

I was just thinking that so I posted about soil ph not buffered yet after transplant.

 

[d0rk2dafullest]

your pots looks a lil dry. feed til runoff!!!!!

 

[Lbgrower]

your pots looks a lil dry. feed til runoff!!!!!

Your pots are really dry... what have you been giving your plants? I'm also in coco with botanicare PRO line.

I was interested in trying kind or CNS17... first let's get your grow fixed up.

may I ask?
1 do you use tap water or RO?
2 do you have ph and PPM meter?
3 have you been watering till run off?

This should be a good start for the info nessisary to diagnose the problem your having.

Let me know ASAP. You could loose that crop.

 

[Lbgrower]

Either way. If it is fresh soil then maybe the lime has not buffered the ph yet. It tends to take a week to get to the mid 6's after watering. Many manufacturers suggest un ph'ed tap water to help charge the soil buffering rather than ro water for the first week regardless of normal regimine.

Fresh coco :) ? Or were you referring to soil?

 

[tinderthumbs]

Fresh coco :) ? Or were you referring to soil?

coco should never let dry out its like hydro

 

[Yourt16]

Your pots are really dry... what have you been giving your plants? I'm also in coco with botanicare PRO line.

I was interested in trying kind or CNS17... first let's get your grow fixed up.

may I ask?
1 do you use tap water or RO?
2 do you have ph and PPM meter?
3 have you been watering till run off?

This should be a good start for the info nessisary to diagnose the problem your having.

Let me know ASAP. You could loose that crop.

I use well water. Yea I have a nice Hanna meter ppm/ph ec. Been pushing it till about 1500 ppm. Water has not been running off in the 5 gals.

 

[Yourt16]

coco should never let dry out its like hydro

It's not dry pots are still very heavy. just the top that you guys can see is dried.

 

[tinderthumbs]

It's not dry pots are still very heavy. just the top that you guys can see is dried.

not saying there are just was tossing that out there lol