Any ideas?

Fupaslayer

Well-Known Member
Honestly idk my humidity temps are between 73-78 throughout the day and I’m using a 45 watt led at about 12 in away I have 4 in ffof and 3 in coco all in same environment and all are good except the one in pic which is in coco and another in coco but no where near as bad... you think it could be ph? I did let it dry out kinda good and think maybe it got acidic but I’m still really new to this
 

Fupaslayer

Well-Known Member
No I didn’t I would just feed with mild nutes after I transplanted into coco but I did flush the hell out of it a few minutes ago with lights nutes hopefully it stopes the brown spot spreading
 

3rd Monkey

Well-Known Member
My bet is there is a pH situation.
I'm game.

I'm rocking mag due to the nature of the coco and that being a big fan. Under an LED, quick transpiration rates and chances are that his VPD is out of spec anyway. Beyond that, the necrosis is at the edges, as well as the chlorosis.
 

3rd Monkey

Well-Known Member
Well pH can cause uptake problems of all sorts.
I agree. The only thing I see deficient is mag. Even on the lower leaves. If it were ph, I would expect the chlorosis/necrosis to be in the middle of the leaf. At the tip, suggests it's being used up, in my opinion.

By the way, I just realized that post sounds kind of in your face dickish but that is not how I meant it at all. Playful mood is all. Nothing but love for you.
 

Fupaslayer

Well-Known Member
Well pH can cause uptake problems of all sorts.
I'm game.

I'm rocking mag due to the nature of the coco and that being a big fan. Under an LED, quick transpiration rates and chances are that his VPD is out of spec anyway. Beyond that, the necrosis is at the edges, as well as the chlorosis.
Let’s call it a win/win for y’all lol.. let’s assume it’s a ph problem causing the mag def. !! Thanks for the help from both y’all but tomorrow I will add some epsom salt just to be safe
 

3rd Monkey

Well-Known Member
Let’s call it a win/win for y’all lol.. let’s assume it’s a ph problem causing the mag def. !! Thanks for the help from both y’all but tomorrow I will add some epsom salt just to be safe
Lol, sure. Just keep your ph in spec and give it some mag, she'll bounce back.
 

Fupaslayer

Well-Known Member
Did you run mag and raise the lights?
Ya and I raised my ppms in coco today and bought a Foliar spray... I don’t understand why it’s happening In my ffof also if it has plenty of the goods. Think it could be a potassium problem?
I was told clones use a lot of p to grow roots
 

3rd Monkey

Well-Known Member
Ya and I raised my ppms in coco today and bought a Foliar spray... I don’t understand why it’s happening In my ffof also if it has plenty of the goods. Think it could be a potassium problem?
No, I'm pretty positive it's a mag problem. Why did you raise ppm? They're having a hard rough time using what they have with such a small root mass.

Your light intensity is too high, your humidity is too low or temps too high, you don't have enough mag, or you have mag locked out.

Has the one you posted got any worse since you gave it Epsom and backed off the light?
 
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