Can anyone help me figure out what's wrong here? Like what kinda difficiency this is.

So I'm running a 10 gallon DWC hydro system.
PH- 5.7
TDS - ~800]
Lighting: 600W MH/HPS bulb. currently using MH for veg
Temps: temps are running around 80 F with periodic frozen water bottles being put in throughout the day, so maybe lower. (not dropping hundreds into a chiller)
- Due to the high temperatures, I am running bennies. I used a recipe from heisenberg i believe that involves breeding them for 2 days using hydroguard, zho powder, and EWC.

Nutes - using Dynagro Foliage pro

What kind of deficiency causes the leaves to curl upwards but other that that, the plant is perfectly healthy, no discoloration of any kindHP bud pic.png .
 
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deadgro

Well-Known Member
Heat stress or root issues. I've never seen a deficiency cause cupping. Do you have air stones in your reservoir?
 
yeah i have 2 8" and 2 4" air stones, 2 air pumps. I raised my light some, hopefully this will help if it is heat strain. Its dwc and I'm running bennies, the roots should have no problems whatsoever, i hope at least.
as you can see its only prominent in one plant, I'm hoping this one just got a little too close to the light
 

deadgro

Well-Known Member
yeah i have 2 8" and 2 4" air stones, 2 air pumps. I raised my light some, hopefully this will help if it is heat strain. Its dwc and I'm running bennies, the roots should have no problems whatsoever, i hope at least.
as you can see its only prominent in one plant, I'm hoping this one just got a little too close to the light
Its possible it was too close to the light. Have you looked at the roots?
 

Alienwidow

Well-Known Member
Looks a lot like heat stress causing tacoing or light being too close and the leaves trying to hide.. No nutrient issue usually causes tacoing ive seen. Like deadgrow said.
 
well the reason the foil is over the lid is to deflect some of the light that didn't hit the plants, and in some cases, i thought it might be giving the plants a double dose, they get the light hitting the tops of the leaves, and also the bottom from the foil; figured this may be a good thing, more light, better growth? My res has been running pretty warm, (hence why I'm running bennies), i figured having foil on top could help with that problem at least a little, and it seems like it did, temperatures went down 3 or 4 degrees on average, however I'm still in the low 80s, as opposed to mid 80s.
And i have taken yalls advice and moved the lights a little farther up.
Deadgro, the roots look fantastic, everything looks perfect for now besides the tacoing
 

DWC enthusiast

Active Member
Foil reflects thermal energy and creates hot spots. Also I'm not sure there is any benefit in lighting the under side of the leaves at all
 

DWC enthusiast

Active Member
i figure it still absorbed some. Do you not think this helps keep res temps a little lower?
it probably does keep the temp down a little bit but covering with something white is preferable to foil. Painting your container white would be ideal. I still say that lighting the underside of leaves is pointless but it shouldn't hurt
 
On an unrelated note, would you have any input on when i should switch then plants into a 12/12 lighting schedule and change nutes to a bloom solution. About how tall or how many nodes should the plant have before it is ready?
I also don't remember if these plants were auto flowering or not. I feel that i may have a problem.
Also, in this system, i have 2 plants that are significantly farther along than the other three. Am i pretty much just sentencing the other three to a stunted growth if i switch up nutes and lighting schedule for the other 2 to bloom before the smaller plants are ready? or would i be able to harvest and move them back into veg, and hopefully the smaller plants will move back into stable veg growth after a period of stunted growth from the wrong nutes and diminished lighting schedule used for the flowering of the 2 larger plants.
I know i shouldn't have put plants of different age into the same system, but at this point, I can't do much about it short of starting a separate system for the younger plants.
 
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