Help diagnose this issue!

Indoor, day ten of flowering in FF dirt, 1/2 strength nutes (MG) with a ph of 6.5.

Started out with small brown spots on the bottom leaf sets (just the tips) and then random spots and now this:



I'm fearing it could be a fungus issue. Help, guys!

Brown spot as mentioned:

if its just on a couple leaves*** dont stress it, but if it starts gettin worse you might want to flush her out

It's been showing signs of progression for 2-3 days now.

can you post a pic of the entire plant? i find those kinda pics more helpful

well looks like you might be about 2 weeks into flower? but if your sure your not overwatering...i guess a P def is possible, your giving flower nutes right? whats the NPK of the MG stuff you got?

10 days into flower. NPK is 15-30-15.

Damn, I would chill the nutrients a little. It does not seem like nute burn though, most likely a deficiency. Do you PH your water?

Its all in my initial post...Half strength nutes and the ph is 6.5.

damn, my guess is bump the nutes up? id wait for others to comment tho man, im not sure on this one

I wouldn't stress it man, if they are dying off fro the bottom up it is natural necrotic growth which occurs at different stages in the light cycle, in the last 2 weeks those plants have made a draaastic change in the mind set, before it was, get as big and bushy and leafy as she could...

Now the plant is under the impression that winter is coming and wants to make itself the most fuckable piece of plant in the world, which include maximizing flower and oil production to induce pollenation...with a lot of strains you will see yellowing or dying off of the lower leaves, this is a natural process which you can allow to happen, or increase the nutrients you are supplying your plant with to make up for this increase in development

feeding them any cal/mag.? any micro nutes? looks like a P deficiency. i'd bump up the nutes a bit.

Well I also use FF big bloom which I believe has the micro nutrients. I'll use full strength nutes and see where to go from there.

Here's an updated pic, guys:

P deficient, maybe?

Anyone? I've asked so many and nobody seems to know. :/

yes its P deficiency View attachment 1751937View attachment 1751938

and @themoose, since when did a dieing plant become a healthy plant. if it shows N deficiency(like you described) it meens it needs some nutes.
losing leaves = losing yield

with a lot of strains you will see yellowing or dying off of the lower leaves,

Click to expand...

it is natural necrotic growth which occurs at different stages in the light cycle

Click to expand...

To me it looks like heat stress. That is by no means a nutrient deficiency, unless its calmag deficiency but I lean heavily toward heat.

Even if the heat has never gotten above 84?

Thanks for the help so far you guys!