Help! I do not know what this is!

Hello RIU,

I have noticed brown spots on the leaves on my top colas and was wondering if this was a defiencency/ or toxicity? I have looked everywhere online and cannot pin point if this is actually a problem. I currently use Fox Farm Nutrient line. She is 57 days into flowering and it is a bag seed so I do not know the strain.

Any help at all?

What are your temps and humidity?

What kind of light? Air cooled?


Soil? Hydro? What have you been feeding it?


A little more information will be helpful.

It looks like Ca/Mg deficiency to me. cn

SpicySativa said:

What are your temps and humidity?

What kind of light? Air cooled?


Soil? Hydro? What have you been feeding it?


A little more information will be helpful.

Click to expand...

Currently growing in Soil.
Humidity ranges from 30%-40%
Temps range from 75f-82f
65w x12CFL lights
I just feed half strength of fox farm Cha-Ching. I am lowering the dosage as i get closer to harvest. Thanks!

it could be ph issues which cause nutrient lockout and that mimics nutrient deficiency's so you got to be certain which one it is before you do anything or it will only get worse