Help please 1st grow

B

BGezzy

420 Member
IMG_20160317_161013797.jpg
IMG_20160317_161009713.jpg
IMG_20160317_160946691.jpg
IMG_20160317_160906716.jpg
IMG_20160317_161022846.jpg
IMG_20160317_161144462.jpg


I would like to start by saying if this post, is not in the right spot. Sorry let me know and will move. (My first post long time listener, first time caller.) I don't know what is wrong with my plants. I use a advanced LED lights xml 650 and a 5x5 gorilla grow tent. Use technaflora at 50% and the enricher at 50% (2 T for 5 gallon bucket). Also CO2 enhancer by the TNB naturals. Room temp is 84 at 70% light. Just turned down light to 50%. Due to the fact leaves were doing same thing and have been thinking it is to much light but at this point I am not sure which is why I am here. Also I forgot to add that except for the last 2 weeks of vegetation stage they were under the tube light that is in the pictures. Been in Flowering for 3 weeks now.
 
They have been bunt up pretty bad by something. I'm thinking the light by the looks of them, but a natural light picture will definitely help.
 
Since turning the lights down to 50% the leaves don't seem to be burnt as bad, but still burning on the tips. My fear is if I turn them lower that it will hurt their flowering. I have 50% red 0% blue on right now; what is the proper light ratio for flowering cycle?
IMG_20160318_093314450.jpg
IMG_20160318_093308268.jpg
IMG_20160318_093258925.jpg
IMG_20160318_093319856.jpg
IMG_20160318_093612621.jpg
IMG_20160318_093622885.jpg
 
Are you running an exhaust fan? Seems like you got your Temps down by switching to 50% power but if you can find a way to control your temp better I would think you should be able to run that light on full power. I thought the biggest point of led lighting was to use full spectrum though I have never used them and could be wrong. How far away is your light? What is the pH and temp of your nutrient solution? (I assume you are running dwc) it looks like heat might not be your only issue though
 
I use that same light and love it! I get odd leaf curling (light poisoning) at around 2" from the light. Proper setting for that light is (both knobs on full power all the time). From the looks of your pics, I'd guess this...

A micro/macro deficiency. If it started toward the bottom of the plant and worked up, it's macro. If it set on all at once, it's a micro nutrient. It's more than likely lockout. Biggest culprit is PH. With your temps, I'm going to guess its more likely a root problem. Are they clean/white and free of a "swampy" smell? I'm sure you're diligent with PH. I suspect you're battling a root problem. I can't begin to tell you how to correct it but, if it's the case, we can get some help that can. Let us know how the roots look... Good luck!
 
PH 6.0 to 6.5. Roots look good and white. Can't run 100% of both lights if I did wouldn't have leaves left. They are about 24" from the light. Also don't think it is macro or micro because some of the leaves are great green color and healthy. Mostly the leaves in direct contact with the lights are the ones doing it first

I am thinking it might be the fact that they grew their vegetation stage under the tube lights I pictured in my first post (last picture). Now they are under LED lights and maybe the LED lights are overwhelming them with light compared to what they started with.
Ideas/thoughts on that?
 
Sounds like you have it all figured out!

My thoughts are still.. You have a major nutrient deficiency. PH of 6-6.5 is a bit high for P in hydro. I suspect the onset of flowering (and with it a higher Phosphoros requirement) is why the deficiency is so apparent now. I bet when you add more light, your nutrient requirements go way up and the deficiency worsens (because your plants are trying to produce). All that said, I'm not a bubbler person.

If you think light is burning your plants, what is your reasoning for the lowest and partially shaded leafs showing the same stress as the ones near the light? I move mine in from CFL under the light and they don't show any signs of stress at all.
 
If they are at 78 degrees and 24" from the light, that should be OK. Also, I see problems down low - not just up top. Weird. Almost looks like a severe 'K' deficiency or toxic salt buildup, but IDK.
 
I would flush with plain water with a ph of 5.5 - 6 and then go with half strength nutes what is your res temp. I am definitely going to side with the other guys it doesn't seem like light burn to me the leaves would be curling upward. Are you using a product like hydroguard or any other beneficial bacteria. The top would be completely fried for the leaves on the bottom to look as bad as they do if it was due to the lights
 
Have you measured the EC/PPM of your solution?
I'm guessing it is either that or PH is either off or swinging too far.
I'm not a hydro guy so take it for what it's worth.
 
Back
Top Bottom