Can anyone help me with this? calcium deficiency?

[Aqua Man]

View attachment 1084339

But thats not calcium.

 

[gorillaglueaaron]

But thats not calcium.

Am I correct that the new problem is early nitrogen tox?

 

[Aqua Man]

Looks like to much light but thats does mean that light stress can be a symptom with a different cause.

What all the environment parameters day and night.

 

[Aqua Man]

And yeah they look a touch hungry but ot bad.

 

[gorillaglueaaron]

Looks like to much light but thats does mean that light stress can be a symptom with a different cause.

What all the environment parameters day and night.

The brown spots have stopped, the new problem is the curling of the leaves and discoloration.

 

[Aqua Man]

Parameters day and night?

 

[gorillaglueaaron]

Parameters day and night?

xs2000 30% 1.5ft 9/3/9/3
25.5c
70%rh
360ppm of gh trio and tap water
5.7pH

 

[PK1]

1.5 ft is your problem. High light intensity. I think i mentioned that on the 1sst page or so. Also, your crulled leaves never turn back.

follow manufacturer height recommendation.

 

[gorillaglueaaron]

1.5 ft is your problem. High light intensity. I think i mentioned that on the 1sst page or so. Also, your crulled leaves never turn back.

follow manufacturer height recommendation.

It's only at 30% though. I calculated approximately 300ppfd.

Edit: Sorry, I messed that up. Turns out it's just over 400.

 

[PK1]

is the last picture your recent picture?
bring it to 2 ft at 30% and see how she reacts

 

[Aqua Man]

xs2000 30% 1.5ft 9/3/9/3
25.5c
70%rh
360ppm of gh trio and tap water
5.7pH

I'll check out the light but RH is to high, drop to about 60%

What the tap water ppm to start with?

 

[gorillaglueaaron]

is the last picture your recent picture?
bring it to 2 ft at 30% and see how she reacts

Just raised to 2.5 and it's now at 300ppfd/16000 lux.

 

[gorillaglueaaron]

I'll check out the light but RH is to high, drop to about 60%

What the tap water ppm to start with?

Thanks.
110

 

[Aqua Man]

It's only at 30% though. I calculated approximately 300ppfd.

Edit: Sorry, I messed that up. Turns out it's just over 400.

400 is a touch high for this stage.

 

[Aqua Man]

Just raised to 2.5 and it's now at 300ppfd/16000 lux.

Thats better.

 

[Aqua Man]

Thanks.
110

Just to about 400ppm

 

[Aqua Man]

You may even wanna lower the light a touch more for a few days just to allow it to recover faster. Like 3 days at 10k lux.

Drop humidity to 60%.

Up ppm to 400.

 

[gorillaglueaaron]

You may even wanna lower the light a touch more for a few days just to allow it to recover faster. Like 3 days at 10k lux.

Drop humidity to 60%.

Up ppm to 400.

Thanks.

 

[PK1]

Just raised to 2.5 and it's now at 300ppfd/16000 lux.

to give you an idea i put my light at 3ft with 60% intensity. other why's i'm burning more leaves. However, in my tent i've got the light at 3 ft with 30% intensity. The tent is a clone/seedling tent

 

[PK1]

I agree with aquaman but 400ppm might be a bit to much. I'd keep it below 300