Why are my edges turning brown?

[Joeykush]

Any ideas.. Nutrition burn?

Thanks

 

[Hollatchaboy]

Nute burn.

 

[hotrodharley]

How To Fix Potassium Deficiency In Weed - Zamnesia

Learn everything you need to know about potassium deficiency at Zamnesia. Discover how to prevent and solve the problem using simple fixes.

www.zamnesia.com

 

[Budzbuddha]

All the above are good valid points but have noticed that brown “ tips “ along serrated leaf edges are also a sign of overwatering.

 

[Joeykush]

All the above are good valid points but have noticed that brown “ tips “ along serrated leaf edges are also a sign of overwatering.

View attachment 5260625

They are only bottom fed with the autopots. Possible it could still be over watered?

 

[Budzbuddha]

Hard for me to figure that out for you.
I personally never used that system so im sure maybe there is some way to tweak it for dryback within plant.

That symptom is similar to other reasons but have seen this myself.

 

[hotrodharley]

They are only bottom fed with the autopots. Possible it could still be over watered?

They don’t look overwatered to me. But I’ve got no experience with the watering system you’re using.

 

[Budzbuddha]

All i can recommend is to monitor plants - see if issues advances ( becomes a plant wide issue especially among multiple plants ). Plants look pretty good otherwise.

Advanced issues will show necrosis at leaf.

How are your grow environment temps ?
Maybe plant isnt transpiring enough

 

[Joeykush]

Could it also be caused from the light too close? I have since raised the light and is almost do for a refill of the reservoir so I will lower the nutrition abit this time around and see what happens.

 

[Budzbuddha]

Not from light … im thinking temps and rh that plant has to work with on an “ auto “ water system.

Plant pulls nutes and water up plant and releases water vapor from leaf matter stomata. Higher temps cause stomata to open during hotter temps and evaporate water more frequently. Air flow across plant will help this process also.