HELP Wanted! Yellow leaves and Brown rusty spots.

HELP Wanted! Yellow leaves and brown rusty spots.
See attached photos.

Any ideas?
I think it's a DEF. as the plants have only entered preflower and i was using half strenght biobizz.

LIGHT: 250W HPS + sunlight when its available 24/7 (considering switching to 20/4?)
TENT: 80x80x190
SOIL: BioBizz
NUTRIENTS: BIoBizz Bloom (6ml/2l water) and GROW (2ml/2l water)

half the nutrients....half the results ?

feed them would you, and do it before initiating flower, be sure they're healthy and vibrant even.

Where is this happening on the plant? Bottom, top, whole thing?
What is your environment like? Temps, Rh? Any bugs around? You mention preflower? How old are they? Also you mention natural light and HID?
It may be def, it may be something else.
I agree with Chem, you want them healthy going into flower.
WE

Thanks Guys, Was thiking of some king of underFEED as well here just wanted some opinions.
I just boosted the bloom nutrients and i think they should be gold now, will get back in a few days.

and remember just because a plant shows a particular deficiency even if correctly diagnosed adding more of that resource may make things worse instead of better.

I would guess phosphorous defficency from the look of it

P def. ?? Maybe but, with Ca/Mg being locked out

Bio Bizz is crap.....tied for #1 spot of bad runs with FF trio....

A pic of the whole plant is needed! Can't tell a whole lot from a cpl of leaf pics and no idea where they came from or what the rest of the plant looks like...

Dr. Who said:

P def. ?? Maybe but, with Ca/Mg being locked out

Bio Bizz is crap.....tied for #1 spot of bad runs with FF trio....

A pic of the whole plant is needed! Can't tell a whole lot from a cpl of leaf pics and no idea where they came from or what the rest of the plant looks like...

Click to expand...

Just a educated guess from the formation of brown across the leaf. I was wondering if maybe it was a mag def otherwise.

Ff isn't bad, it just doesn't work by iteslf. I run the trio, supplemented with calmag, and the solvent trio

Hey guys&girls

Here are some pics with the whole setup and plants.
I eliminated the affected tissue and hope for the best that after todays feeding i'll be allright.
Left is a AutoBluberry from Dutch Passion
Right is a bushy AutoMazar also from Dutch Passion

Thanks!

is it me, or does your plants have the same problem, it could be my eyes and or the picture. Notice spots on the one on the right in the lower leaves, and what maybe looks like a few on the mazar, also I notice the tips of the leaves, little yellowing....keep in mind this could be the picture, lighting, and or the after effects of last night

They look over watered to me. But I know nothing about those pots. Do they drain?

Photos where made just after water so i guess they are droppy

ҖҗlegilizeitҗҖ said:

Just a educated guess from the formation of brown across the leaf. I was wondering if maybe it was a mag def otherwise.

Ff isn't bad, it just doesn't work by iteslf. I run the trio, supplemented with calmag, and the solvent trio

Click to expand...

You can make any nutrient line work.
You need to know what to add. Know what to reduce and how to balance for the plant we grow.

I see so many posted problems with Bio Bizz and FF here, it isn't funny.
I say they're crap, because they aren't properly built for, or charted for Cannabis.
Poor charting (feed) is a major problem for many nutrient lines....

Another of my disliked, "strongly" ones is H&G.....Follow their charting for soil and you get a "brick" that water/nutrients don't like to be absorbed into.....nasty charting, with too many ingr., that cost too much for so little! That would make AN the next one on the list.

Wilderb said:

They look over watered to me. But I know nothing about those pots. Do they drain?

Click to expand...

I've used em hell yes they drain makes watering a pain in the ass it's nearly impossible to over water in these pots unless you really really don't know what your doing

Hey guys/girls

I just wanted to let you know it was a DEF
I upped the flowering nutes from biobizz and tehy are looking good now.

Thank you all for your time.

All the best!
E