Mag def or LED light burn maybe? only top leaves affected

SMT69

SMT69

Well-Known Member
Mag def looking symptoms what do you think? Only new growth affected, possibly too much light or light burn?

Dwc
PH is always 5.8-6.0
Ec is 1.6 (850ppm)

Plants are 1 week in 12/12

Nutes -flora nova bloom / calmag /silica / hydoguard

Led is 15" above and dimmed to 800ppfd
Temps are max 82F and low 70F


 
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SMT69

SMT69

Well-Known Member
Symptoms showed when i flipped to 12/12 and cranked the light up abit.

Of course I immediately added more calmag, they probably have at least 350ppm(800ppm total nutes) of calmag now, no change last 24hrs. Any advice ? I was thinking just adding some epson salts wanted to see if experts had any suggestions

I know vpd is off abit, sometimes running low 50% humidity. i have a humidifier running now last 2 days getting to 65% and 82F...maybe that will help but not so far
 
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R

Ryante55

Well-Known Member
SMT69 said:
Symptoms showed when i flipped to 12/12 and cranked the light up abit.

Of course I immediately added more calmag, they probably have at least 350ppm(800ppm total nutes) of calmag now, no change last 24hrs. Any advice ? I was thinking just adding some epson salts wanted to see if experts had any suggestions

I know vpd is off abit, sometimes running low 50% humidity. i have a humidifier running now last 2 days getting to 65% and 82F...maybe that will help but not so far
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I wouldn't be just upping the calmag you really don't need a bunch of extra nitrogen I would up the bloom a little. I don't use those nutes but that calmag led deficiency crap isn't real. Add a little Epsom salt too
Edit: the fact that calmag is about half your nutrient solution is crazy that has to be your problem I haven't used any calmag in the last 4 years with led if I gave them half Cal mag next feeding they would probably die
 
hotrodharley

hotrodharley

Well-Known Member
Ryante55 said:
I wouldn't be just upping the calmag you really don't need a bunch of extra nitrogen I would up the bloom a little. I don't use those nutes but that calmag led deficiency crap isn't real. Add a little Epsom salt too
Edit: the fact that calmag is about half your nutrient solution is crazy that has to be your problem I haven't used any calmag in the last 4 years with led if I gave them half Cal mag next feeding they would probably die
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Any excess of any nutrient can cause lockout. But calcium is probably the worst offender.
 
Bear420

Bear420

Well-Known Member
SMT69 said:
Symptoms showed when i flipped to 12/12 and cranked the light up abit.

Of course I immediately added more calmag, they probably have at least 350ppm(800ppm total nutes) of calmag now, no change last 24hrs. Any advice ? I was thinking just adding some epson salts wanted to see if experts had any suggestions

I know vpd is off abit, sometimes running low 50% humidity. i have a humidifier running now last 2 days getting to 65% and 82F...maybe that will help but not so far
Click to expand...

IMO, I really think if you're in the flower room you want your RH at 50 or a bit higher but 65 imo is a bit high. all in all they look good with the exception of the bit of reverse curl, but that might be just because of the flip and may straighten out in a few days. Oh and at 83 F or higher you will have issues. 80 is okay but I try to keep mine at about 75 F and 55 on humidity.

Best Of luck and they are looking really nice, you should have some nice ladies there when all is said and done.
 
R

Ryante55

Well-Known Member
Bear420 said:
IMO, I really think if you're in the flower room you want your RH at 50 or a bit higher but 65 imo is a bit high. all in all they look good with the exception of the bit of reverse curl, but that might be just because of the flip and may straighten out in a few days. Oh and at 83 F or higher you will have issues. 80 is okay but I try to keep mine at about 75 F and 55 on humidity.

Best Of luck and they are looking really nice, you should have some nice ladies there when all is said and done.
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So you have never heard of vpd? Please don't listen to this guy nothing he said is close to right I know he means well it's just genuinely bad advice
 
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