dark brown spots in middle of leaves

not sure if this is calcium def or not can't really tell judging by the picture thought i'd ask some more experience people for their opinions

need some info m8

what do you need to know? they are in 4th week of flower im not sure what else to provide

any help?

bump still looking for help

I'm in second week of flowering and have observed brown spots on a couple of leaves on my kush. I'm not sure why either.

brissel said more info but you didn't provide.

What lights?
How hot is the grow space? What's the fluctuation over 24 hours?
What's your RH?
What details can you provide about feeding?
Soil or hydro?
A picture or two of the overall plant might help illustrate how widespread the problem appears to be, and if there's a pattern that would indicate a mobile/immobile nutrient deficiency.
What strain or strains? If you have more than one plant, are they all showing the same symptoms?

Soil, lights, temp, bugs, etc