Help Please I think im losing every thing!

So here I go. Im into flowering period about 6 weeks, and one of my ladies start to get a yellow leafs, but I thought that it will pass, but no just get worse. This is a strain that I dont know. Im using veg and bloom from biobizz the soil is lightmix from biobizz to. The temps are fine humidity as well, always phed water, and I water with nuts and next time I dont, one time yes one time dont just like this till now. And this problem seems to get start to affect the other babyes. But I put here the fotos of every plant I have:

the worse one:


This is a blackberry and have this brow dots all over the plant but didnt get worse over the flowering period:



this is a SAD from sweet seeds from spain:


this one is the best in looking but is very late in relation to the other plants, and have just only one leaf worse looking, in this one I made supercroping:




what do you thing about this prob? one more thing, when i nute I put 3ml per liter of grow and 3 of bloom. And this plants have lst. PLEASE HELP ON THIS! THANKS!!!!

get your ppm's down to 500-800 for flowering and see what happens.

what are your ppm's now?

^^ what Jesus said

Probably nutrient lock from excessive salts buildup in the soil...do as the jesus says...if anything I'd go even further and cut out nutes for a few waters...but I am not an expert...still a noob

The yellowing and necrosis are suggestive of K deficiency ...
I looked up BioBizz and their Fish-Mix and Bio-Grow are very K-rich ... switch to one of those?

jesus makes a good point. Are you tracking your ppm in feed and runoff? Could be a lockout. cn

psstttt

(he is gonna say that he dosent have a ppm meter)
such a cheap and useful tool. I dont go on vacation without MY vaseline, often overlooked until you need/want it.

what is your medium and what is your ph ?

I would do a serious flush for 24 hr with ro water if you have it if not tap is ok. then go back to a 800ppm solution working back up (100 ppm) daily to what you have now.


again what is the ph it looks like a deficency but ph is probably the factor not lock out .....

jesus, I hesitate to ask what you do on your vacations ... cn

cannabineer said:

The yellowing and necrosis are suggestive of K deficiency ...
I looked up BioBizz and their Fish-Mix and Bio-Grow are very K-rich ... switch to one of those?

jesus makes a good point. Are you tracking your ppm in feed and runoff? Could be a lockout. cn

Click to expand...

I use biogrow you think I should use the Fish-Mix?

Bobby.Loveable said:

what is your medium and what is your ph ?

I would do a serious flush for 24 hr with ro water if you have it if not tap is ok. then go back to a 800ppm solution working back up (100 ppm) daily to what you have now.


again what is the ph it looks like a deficency but ph is probably the factor not lock out .....

Click to expand...

I walways water with the ph correct! what do you think?

and what about the other plants?

Drip clean will kill salts

jokacross said:

I walways water with the ph correct! what do you think?

Click to expand...

how long do you let your nutes mix? after 20min my 7.5 water doesnt change and hr it normally dips into the high 6's and after 4hr it stays steady at 6.2

i use city water and the Canna coco line + Canna additives

Samwell Seed Well said:

how long do you let your nutes mix? after 20min my 7.5 water doesnt change and hr it normally dips into the high 6's and after 4hr it stays steady at 6.2

i use city water and the Canna coco line + Canna additives

Click to expand...

i always do the mix and water after doing it. i dont wait any time.do you think thAT is the problem??

Samwell Seed Well said:

Drip clean will kill salts

Click to expand...

can you explain me better???thanx

jokacross said:

can you explain me better???thanx

Click to expand...

I'm guessing it means that if you flush well, your salts imbalance will be resolved. When you water, do you get runoff, or has your soil been accumulating unused andor excess nutrient? What can you tell us about measured ppm - water, nute soln, runoff? These aren't critical, but if you've never given your pots a thorough flushing, that would be a great place to start. Then feed with something P- and K-rich. cn

cannabineer said:

I'm guessing it means that if you flush well, your salts imbalance will be resolved. When you water, do you get runoff, or has your soil been accumulating unused andor excess nutrient? What can you tell us about measured ppm - water, nute soln, runoff? These aren't critical, but if you've never given your pots a thorough flushing, that would be a great place to start. Then feed with something P- and K-rich. cn

Click to expand...

Im going to try that! Someone with more ideas?? thanks!

That don't look that bad for 6th week flowering?
How many ppms? They most likely have to much
nutrients build up in the soil like pic 4 and 5.
Yo dew ur really need veg nutrients that late into
flowering? I would of cunt them off like week 4
of flowering.

I dont have the tool to know how many ppms im feeding. Im going to buy now. Some help please? thanks