is this Leaf Septoria?

[Corbett96]

Only has it on 1 Plant but on 2 leafs.

Trainwreck
All mix Biobizz soil
Biobizz nutrients
3 weeks old / Day 2 Flowering
27.5 C Max - 25.4 Low (Day)
25 C Max - 17 C Low (Night)
35 Low - 50 High (Humidity)

 

[Tjs1989]

What's the PH of your water when you feed? And ppm?

At first glance it looks more like a calcium deficiency. Do you use RO water or tap? Are you adding any micro nutrients or just grow and flower nutes?

 

[Corbett96]

What's the PH of your water when you feed? And ppm?

Ppm?

Around 6.1/6.2

I use Biobizz apparently they say and others that you don't need to worry about PH as all organic.

 

[Tjs1989]

Ppm?

Around 6.1/6.2

I use Biobizz apparently they say and others that you don't need to worry about PH as all organic.

I don't know much about soil and organics bc I do sterile hydro.

Are you using all of the Biobizz nutrients by their feeding schedule?

Ppm - parts per million - tds/EC meter

 

[thumper60]

Only has it on 1 Plant but on 2 leafs.

Trainwreck
All mix Biobizz soil
Biobizz nutrients
3 weeks old / Day 2 Flowering
27.5 C Max - 25.4 Low (Day)
25 C Max - 17 C Low (Night)
35 Low - 50 High (Humidity)

View attachment 4091250

no

 

[Corbett96]

Yes going by as it says on chart I have another 2 plants in there but they don't have any problems or signs of it on there leaves.

 

[Corbett96]

no

Do you know what it is or cause by?

 

[thumper60]

I will leave that to others,100%not leaf spot

 

[Tjs1989]

Yes going by as it says on chart I have another 2 plants in there but they don't have any problems or signs of it on there leaves.

Ok.
Like they said it's not septoria. Deficiency of something most likely. Id check the runoff ph and make sure it's 6.5-7.
It'll be fine just stick w your feeding schedule and watch the new growth.

Plant looks really good tho