Need help diagnosing leaf symptoms on these two since switching to flower

[Noman02000]

Hi All...

Still pretty new to growing (2nd grow) and getting a little worried. I was doing some LST because of the low height on the tent but stopped to minimize stress factors.

Symptoms:
Spots, yellowing and twisting in middle of leaf since I switched over to flowering. Worried that it's nute burn but can't quite tell. It seems to be the worst near the edges of the light.

Thinking it could be wind, light or maybe humidity issues? The RH has been fluctuating a lot in the area but it's generally in the 60 range. Was in the 70s a few days ago and dropped to 55 at some points.

Not sure how to help them.

Strain - og kush and Blue Dream
Medium - coco
Light - sandalwood LED
Fertilizer- general hydroponics
Pot - 3 gal fabric pot

Any help is really appreciated

 

[mysticepipedon]

It doesn't look like nute burn. Possibly a potassium (K) problem. I would think lockout or some kind of interference, rather than the lack of the nutrient.

I can't tell you what to do. I have no experience with coco. Hopefully someone with coco experience will jump in here.

 

[Noman02000]

It doesn't look like nute burn. Possibly a potassium (K) problem. I would think lockout or some kind of interference, rather than the lack of the nutrient.

I can't tell you what to do. I have no experience with coco. Hopefully someone with coco experience will jump in here.

Thanks so much for input. I thought it could be a deficiency but hadn't considered lockout. I'll check out some causes and remedies for it to see if it's maybe something in my setup or watering.

 

[Noman02000]

Hi All,
Been seeing slow growth during flowering stage (about 5.5 weeks in) but can't figure out what's wrong.

Using general hydroponics and was following the ratios but thought I saw signs of burn.

Tried 2/3 nutrient ration but still don't seem to be as healthy as I'd hope.

Any idea what it might be and how I can save these babies. Getting really worried that it might be something serious and I'll lose them.

Appreciate any help.

Info:
Og kush and Blue Dream (about 5.5 into flowering stage)
Coco coir
Fabric pots
Sandalwood led
Gen hydroponics

 

[hippiebutter]

I had the same problem before and never figured it out. I can't wait to see what better growers think is wrong.

 

[Noman02000]

I had the same problem before and never figured it out. I can't wait to see what better growers think is wrong.

Good to know its not just me. How'd that grow turn out?

 

[Aqua Man]

What make and model is that light and how close to the plants is it?

What size containers and ratio of perlite?

How often and how much do you water?

Ppm and PH of nutrients in and out?

 

[Noman02000]

What make and model is that light and how close to the plants is it?

What size containers and ratio of perlite?

How often and how much do you water?

Ppm and PH of nutrients in and out?

Sandalwood led (D14140008 12LED Grow Light NEW Fba New)

Gallon fabric pots w/ Uncle Bud's Coco and Perlite Potting Mix (not sure the ratio)

I water until I get runoff and usually have to do time every three days or so.

Not able to measure ppm right not but ph my water to 6-6.2

 

[Aqua Man]

How high is the light? Definitely to much light for their health right now sobid back it up a bit

You are WAAAY under watering and likely have a large buildup of nutrients.

That explains the shiny waxy look.

Dont treat coco like soil. Read this.

HOW TO WATER COCO FOR BEST RESULTS.

Ok writing this cause i see this issue often and rather have a thread to link than explain this each time. This is not my work but a collection of info from many members here and I have put into practice myself. So first off COCO is NOT soil. For best results we want to keep it saturated...

www.thcfarmer.com

 

[Noman02000]

How high is the light? Definitely to much light for their health right now sobid back it up a bit

You are WAAAY under watering and likely have a large buildup of nutrients.

That explains the shiny waxy look.

Dont treat coco like soil. Read this.

HOW TO WATER COCO FOR BEST RESULTS.

Ok writing this cause i see this issue often and rather have a thread to link than explain this each time. This is not my work but a collection of info from many members here and I have put into practice myself. So first off COCO is NOT soil. For best results we want to keep it saturated...

www.thcfarmer.com

Ok. I'll raise the light and take a look at the link and see how they respond. Thanks for the feedback!