Deficiency

[hobby_farmer]

Hello, i have a problem with my plant. She has some kind of Deficiency but i cant figure it out.
From the beginning i noticed slow growth compared to my other plant in the same setup. Then the Brown spots started to appear and those leafs feel dry and brittle.
Older and lower Leafs are affected more.
The upper/newer Leafs have some weird Twisted growth but i don't know if i should worry about that

Medium/grow method:
I have a RDWC setup with 2 Buckets, each 20L with a extra Reservoir bucket and a Water Chiller running at 19°C.
Germinated in a rockwool cube
The roots look very healthy and are mostly white.

Feed: and supplements used:
I only mostly Terra Aquatica stuff
Current feed:

• 1,1g/L Drypart Grow
• 1,5ml/L Calmag

Supplements:
Fulvic
Seaweed(foliar spray)
Urtimax(foliar spray)

And some Great White for the water.

water source:
I use RO water
with my current feed i come out at:
PH: ~5,8
EC: 1,4-1,5 mS

EC fluctuates a bit but is mostly stable as well as the PH

Strain/age:
She's a Imperium X auto by Anesia seeds. Exactly 26 days old
light used:
I have 2. 200w Spider farmer SF2000 setup so that they receive a ppfd of about 600
Climate:
23°C and 60% RH at day and about 3°C colder at night
Additional info:
The other plant in this setup(different strain) is doing more than fine so this has to be some plant specific thing.
Maybe it wasn't a good idea to put two different strains in a RDWC setup

 

[elcoloan]

Hello, i have a problem with my plant. She has some kind of Deficiency but i cant figure it out.
From the beginning i noticed slow growth compared to my other plant in the same setup. Then the Brown spots started to appear and those leafs feel dry and brittle.
Older and lower Leafs are affected more.
The upper/newer Leafs have some weird Twisted growth but i don't know if i should worry about that

Medium/grow method:
I have a RDWC setup with 2 Buckets, each 20L with a extra Reservoir bucket and a Water Chiller running at 19°C.
Germinated in a rockwool cube
The roots look very healthy and are mostly white.

Feed: and supplements used:
I only mostly Terra Aquatica stuff
Current feed:

• 1,1g/L Drypart Grow
• 1,5ml/L Calmag

Supplements:
Fulvic
Seaweed(foliar spray)
Urtimax(foliar spray)

And some Great White for the water.

water source:
I use RO water
with my current feed i come out at:
PH: ~5,8
EC: 1,4-1,5 mS

EC fluctuates a bit but is mostly stable as well as the PH

Strain/age:
She's a Imperium X auto by Anesia seeds. Exactly 26 days old
light used:
I have 2. 200w Spider farmer SF2000 setup so that they receive a ppfd of about 600
Climate:
23°C and 60% RH at day and about 3°C colder at night
Additional info:
The other plant in this setup(different strain) is doing more than fine so this has to be some plant specific thing.
Maybe it wasn't a good idea to put two different strains in a RDWC setup



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what ph meter are you using? could you also post a pic of the other plant for reference?

 

[NORB YIPPLS]

Considering you got 2 diff strains in the one setup is maybe the problems.
Waste From one should not be used in on other strain unless u can get away with it if you know what I mean.
Separate Rez per plant unless the same nutritional needs.
Otherwise your over or under in nutritional values.
Can you separate the rezes

 

[hobby_farmer]

Can you separate the rezes

No sadly not. Well theoretically yes but that would make half of the system and my water chiller useless. I'd rather cut it and grow only 1 plant before putting ice in 2 different buckets on a daily basis.

I don't really wanna lose here so maybe there is a way to balance it out? Or maybe with the help of some extra foliar spray?

what ph meter are you using? could you also post a pic of the other plant for reference?

Thats her sister. A Wham boom from the same seed bank.
I use a PH pen from Amazon. It was around 40€. Can i share a link here?

 

[Lil Dab]

Could be too much N and Ca maybe try cutting out the calmag and see how the issue progresses

 

[hobby_farmer]

Could be too much N and Ca maybe try cutting out the calmag and see how the issue progresses

Shouldn't the Leafs be dark green if its too much N? This poor lady is so much brighter in color than her sister.
I already thought about Ca but shouldn't it be a deficiency then? or has this something to do with the antagonism/synergism of the different parts?
Nutrients are confusing

 

[Lil Dab]

Shouldn't the Leafs be dark green if its too much N? This poor lady is so much brighter in color than her sister.
I already thought about Ca but shouldn't it be a deficiency then? or has this something to do with the antagonism/synergism of the different parts?
Nutrients are confusing

Yes and no on the leaves being dark the tell tale sign is clawing and tips turning dark. There's not much but I do feel like I see some clawing. As for the Ca I was thinking it's P issue being locked out by too much Ca. I could be completely in left field I am a stoner

 

[Lil Dab]

For what it's worth lot of us run multiple strains on a single Rez there's always some differences but most plants get by fine with the same feed

 

[Olderfart]

For what it's worth lot of us run multiple strains on a single Rez there's always some differences but most plants get by fine with the same feed

ditto in my top watering setup, they all get the same nutes, I just tailor the mix to not over-EC it for the most sensitive. Everyone else can be a bit hungry. A bit of hunger seems to not hurt much, and seems less of a problem than nutes that are too high ec.

 

[Olderfart]

Thanks for the rep mate, I appreciate it.

But we know that the combination of gray (white?) hair, coupled with our favorite plant means that I sometimes forget who repped me. Sad, but there you have it.