Got no idea what this is.

[DrPhoton]

I thought maybe a deficiency in manganese or calcium but im thinking perhaps a fungis. What yous reckon ?

[Weasel]

Calcium deficiency. It also looks undernourished, but one or two leaves don't tell the story of the whole plant so it might not mean anything.

[Green75]

What is your ph..
what is your medium..
What are you giving the ladies food wise..

[DrPhoton]

Hey Green. I use a local high quality all organic soil with a mixture of coco fibre and wetting agent. I also fert with blood and bone and seaweed tonic. I havnt needed to fert with blood and bone all that much because everytime i do it gets nute burn and claw. So i reckon its pretty good soil.
I just topsoiled with the same stuff with added calcium, mag and potassium.
I must admit i have not checked ph since transplanting. Iv been fine up until now.

[DrPhoton]

Its got quite a bit of nutrients and any additional ferts gets nute burn and claw. This problem is on a good deal of the plant, new or old leaves but appears to be less on the very top of the colas.
I really thought calcium deficiency too. Iv added topsoil with additional calcium fertilizer.

[DrPhoton]

[Green75]

They look good...real good...top soil should help

[DrPhoton]

Yea, i pulled all the really bad looking leaves with the spots as they were yellowing. As long as its not fungus i think il be right.

[NebulaHaze]

Your plants look great! They obviously like what you're doing!

Are the symptoms happening mostly on the leaves that aren't getting any light anymore? I've noticed plants often "give up" on those leaves, and sometimes those leaves get sort of wilty with spots that look a little like this.

[DrPhoton]

Actually the opposite, inside where light is reached less the problem is less. But i do find leaves will yellow and die off inside the plant. I quite often remove old leaves in there. The plants are already so wide i cant LST any further. But they have enough space between eachother.

[NebulaHaze]

If it's happening most on the hard-working leaves, that leans more to a calcium deficiency. Coco is notorious for needing lots of extra Cal-Mag, and if the pH is a little too high or too low that can set it off. But overall it seems like a minor problem because your plants look great!

[DrPhoton]

Yea make sense as they make this soil with extra cal mag. It does affect the bigger larger hard working leaves.