Any ideas?
- Thread starter Fupaslayer
- Start date
3rd Monkey
Well-Known Member
How's your humidity and light intensity?
Looks like it's burning through Mg as fast as it can, but the roots are too small.
Looks like it's burning through Mg as fast as it can, but the roots are too small.
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
3rd Monkey
Well-Known Member
It could be ph if it's real acidic. Did you buffer the coco?
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
Well, my money is on Mg, so if you had that in your nutes, I'd say you should be fine.
3rd Monkey
Well-Known Member
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.
Renfro
Well-Known Member
Well pH can cause uptake problems of all sorts.
3rd Monkey
Well-Known Member
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
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
Lol, sure. Just keep your ph in spec and give it some mag, she'll bounce back.
Fupaslayer
Well-Known Member
Another question; do you think insects/bugs could cause that type of mess
3rd Monkey
Well-Known Member
No.
Fupaslayer
Well-Known Member
Hey man I got another question.. do I need to use Cal mag when using RO in ffof
3rd Monkey
Well-Known Member
I don't use it. I don't know how it's amended.
Fupaslayer
Well-Known Member
Ok well now all of them are starting to show same signs any other opinions?
3rd Monkey
Well-Known Member
Did you run mag and raise the lights?
Fupaslayer
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?
I was told clones use a lot of p to grow roots
3rd Monkey
Well-Known Member
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?