Yellow stains on leaves - help needed

[Harukisan]

Hi growers,

i need some expert opinion, the leaves on my plants has some yellow stains, can’t figure out what it is. Any ideas?

it was started outdoor and moved indoor under a Mars Hydro TS 1000.

Thanks

 

[Mañ'O'Green]

@Harukisan Welcome to AFN Looks like a classic calcium problem but plants look over-fed as well. We need more information to get to the bottom of this.

Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)

-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: PH in the root zone. How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..

--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics! Turn off the grow lights.

✂ - - - - - - - - - - -
(copy and paste)-->

Problem:

Medium/grow method:

Feed: and supplements used:

water source:

PH in the root zone:

Strain/age:

light used:

Climate:

Additional info:

 

[Harukisan]

@Harukisan Welcome to AFN Looks like a classic calcium problem but plants look over-fed as well. We need more information to get to the bottom of this.

Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)

-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: PH in the root zone. How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..

--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics! Turn off the grow lights.

✂ - - - - - - - - - - -
(copy and paste)-->

Problem:

Medium/grow method:

Feed: and supplements used:

water source:

PH in the root zone:

Strain/age:

light used:

Climate:

Additional info:

Hi, thank you

Problem: yellow spots on the leaves

Medium/grow method: soil - biobizz light mix

Feed: and supplements used: biobizz nutrients, grow and bloom as per biobizz feeding schedule. Watering by hand.

water source: tap water

PH in the root zone: I don’t know about the ph. It’s my first indoor grow and the plant was transferred from outdoor to indoor

Strain/age: Quick One by RQS - 7 week old

light used: Mars Hydro TS 1000

Climate: 28 degrees day - 24 degrees night. Approx 40-45% humidity

Additional info: leaves started to have yellow spots in one day

 

[Mañ'O'Green]

Hi, thank you

Problem: yellow spots on the leaves

Medium/grow method: soil - biobizz light mix

Feed: and supplements used: biobizz nutrients, grow and bloom as per biobizz feeding schedule. Watering by hand.

water source: tap water

PH in the root zone: I don’t know about the ph. It’s my first indoor grow and the plant was transferred from outdoor to indoor

Strain/age: Quick One by RQS - 7 week old

light used: Mars Hydro TS 1000

Climate: 28 degrees day - 24 degrees night. Approx 40-45% humidity

Additional info: leaves started to have yellow spots in one day

It would be helpful to have some more pictures taken in normal light Full Plant included.

Are you using the rest of the Bio-bizz nutrient line? You should be.

 

[Atulip]

Looks like too much potassium if it's on new growth first. Low soil pH maybe? Or just a bit of nute burn? Seems fast to show up in 1 day on a 7 week old plant though

 

[Harukisan]

It would be helpful to have some more pictures taken in normal light Full Plant included.

Are you using the rest of the Bio-bizz nutrient line? You should be.

View attachment 1236128

I’m only using bio grow and bloom for now, I had them available as it’s the only nutrients I used for my previous plant which turned out fine (it was outdoor though). I’ll consider using the rest for my next grow.

That was the day before:

 

[Harukisan]

Looks like too much potassium if it's on new growth first. Low soil pH maybe? Or just a bit of nute burn? Seems fast to show up in 1 day on a 7 week old plant though

I would have to invest in ph equipment, so far I’ve been growing without any ph calculation.

maybe i should go low on nutrients for a while? I’ve been following the biobizz schedule