Need help here, sick plant

Titans17 · Jul 18, 2021

Hello all!
I have a sick plant here :(, can’t seem to figure out a diagnosis on it. Here are the details:
temp 75-85 degrees, humidity 65%
week 4 of veg
Has been very happy up until a day or two ago
Feeding Athena pro recommended doses
Growing in coco perlite
Water once every two days
Looks like N deficiency to me, but I give her plenty of nitrogen

should I try a flush and then go back to regular watering? I literally cannot figure out what is wrong with her.

RealizedReal000 · Jul 19, 2021

1. Are you growing from seed or clones?

2. How old are your plants?

3. How tall are your plants?

4. What size containers are they planted in?

5. What is your soil mix?

6. How often do you water and what type of water do you use?

7. What is the pH of your water?

8. What kind of fertilizer do you use and what is its NPK ratio?

9. Do you foliar feed or spray your plants with anything?

10. What kind of lights do you use and how many watts combined? (HPS, MH, fluorescent, halogen, incandescent "plant lights")

11. How close are your lights to the plants?

12. What size is your grow space in square feet?

13. What is the temperature and humidity in your grow space?

14. What is the pH of the soil?

15. Have you noticed any insect activity in your grow space?

16. How much experience do you have growing?

Titans17 · Jul 19, 2021

Clones

4 weeks old

30” tall

1 gallons

Coco coir

Athena pro line watering - all necessary nutrients. Every other day

5.6-5.8

athena pro 4-0-1 x 1-3-5

Spray with lost coast therapy once a week

roi-680 x 1 LED

Light is 18”

4x4

humidity 65-75%
temp 75-85

soil ph is 6.0

No insects

2 years

Titans17 · Jul 19, 2021

The stem is quite purple

srtj · Jul 19, 2021

I've had the same issue with my most recent run with Athena Pro. I thought it was due to a change in the CORE nutrient. My first run with them had blue granules, but the latest container I bought was yellow granules.
So, I confirmed that the latest at the store were yellow granules.
I couldn't figure out the issue... I just continued through veg and pulled off the damaged leaves.
It seemed like the new growth after a new batch of nutes was perfectly fine, but after a few days the new growth showed the same striping that you're showing.

Now I'm in flower with the same CORE nutrient and GROW swapped out for BLOOM per the Athena schedule, and all is fine. Still not sure what the issue was, but it looked very similar to what you're having.

Aqua Man · Jul 19, 2021

Light is way to high and you need to treat coco like coco not soil. It should never dry.

What's the reading you get from this?

Lux Meter (Light Meter) - Apps on Google Play

Professional light intensity (lux) meter for your android device.

play.google.com

Then ha e a read here. And the second one yo help you understand why coco is different and needs to be treated differently.

HOW TO WATER COCO FOR BEST RESULTS.

Ok writing this cause i see this issue often and rather have a thread to link than explain this each time. This is not my work but a collection of info from many members here and I have put into practice myself. So first off COCO is NOT soil. For best results we want to keep it saturated...

www.thcfarmer.com

Marijuana Watering, how media, pot size/shape and environment affect it

Discuss different watering methods for growing your own weed from seeds. Our community members give helpful tips on how pot size and material, as well as environmental factors affect growing cannabis.

www.thcfarmer.com

Titans17 · Jul 19, 2021

srtj said:
I've had the same issue with my most recent run with Athena Pro. I thought it was due to a change in the CORE nutrient. My first run with them had blue granules, but the latest container I bought was yellow granules.
So, I confirmed that the latest at the store were yellow granules.
I couldn't figure out the issue... I just continued through veg and pulled off the damaged leaves.
It seemed like the new growth after a new batch of nutes was perfectly fine, but after a few days the new growth showed the same striping that you're showing.

Now I'm in flower with the same CORE nutrient and GROW swapped out for BLOOM per the Athena schedule, and all is fine. Still not sure what the issue was, but it looked very similar to what you're having.

This is very interesting to me. We should keep each other updated with our findings.

Titans17 · Jul 19, 2021

Aqua Man said:
Light is way to high and you need to treat coco like coco not soil. It should never dry.

What's the reading you get from this?

Lux Meter (Light Meter) - Apps on Google Play

Professional light intensity (lux) meter for your android device.

play.google.com

Then ha e a read here. And the second one yo help you understand why coco is different and needs to be treated differently.

HOW TO WATER COCO FOR BEST RESULTS.

Ok writing this cause i see this issue often and rather have a thread to link than explain this each time. This is not my work but a collection of info from many members here and I have put into practice myself. So first off COCO is NOT soil. For best results we want to keep it saturated...

www.thcfarmer.com

Marijuana Watering, how media, pot size/shape and environment affect it

Discuss different watering methods for growing your own weed from seeds. Our community members give helpful tips on how pot size and material, as well as environmental factors affect growing cannabis.

www.thcfarmer.com

I downloaded a different app iPhone and it says 350 at the canopy

Scar818 · Jul 19, 2021

To me it looks like you have magnesium deficiency. I would buy nutriboost also. Flush ur plant with nutriboost(helps get plants out of stress) and with calmag. Then include nutribooat for another 2 times with ur nutrients. Also those white spots on your plant is that mold or spider mites?

Aqua Man · Jul 19, 2021

Titans17 said:
I downloaded a different app iPhone and it says 350 at the canopy

It's says 350 par? What unit and does it have any x10 or x100 symbol

Aqua Man · Jul 19, 2021

Scar818 said:
To me it looks like you have magnesium deficiency. I would buy nutriboost also. Flush ur plant with nutriboost(helps get plants out of stress) and with calmag. Then include nutribooat for another 2 times with ur nutrients. Also those white spots on your plant is that mold or spider mites?

Magnesium looks similar to light bleaching.

Aqua Man · Jul 19, 2021

Titans17 said:
The stem is quite purple

That can be from cold roots or temps but also from intense light.

Aqua Man · Jul 19, 2021

I think if you back the light off and get your watering in order any nutrient deficiency will correct itself.

Titans17 · Jul 19, 2021

Aqua Man said:
It's says 350 par? What unit and does it have any x10 or x100 symbol

Titans17 · Jul 19, 2021

That seems quite low….

Aqua Man · Jul 19, 2021

Titans17 said:
That seems quite low….

Hang on let me look the app up I'm sure it's x100 what's it called

Titans17 · Jul 19, 2021

Aqua Man said:
Hang on let me look the app up I'm sure it's x100 what's it called

Light meter pro on iPhone

Aqua Man · Jul 19, 2021

Titans17 said:
Light meter pro on iPhone

Sec looking it up.

Aqua Man · Jul 19, 2021

Try this one.

Korona - Grow Light Meter

Titans17 · Jul 19, 2021

Aqua Man said:
Try this one.

Korona - Grow Light Meter

It’s all reading very low like 10,000-20,000… I don’t think it’s the lights

Need help here, sick plant

Need help here, sick plant

Titans17

Attachments

RealizedReal000

Titans17

Titans17

Attachments

srtj

Aqua Man

Lux Meter (Light Meter) - Apps on Google Play

HOW TO WATER COCO FOR BEST RESULTS.

Marijuana Watering, how media, pot size/shape and environment affect it

Titans17

Titans17

Lux Meter (Light Meter) - Apps on Google Play

HOW TO WATER COCO FOR BEST RESULTS.

Marijuana Watering, how media, pot size/shape and environment affect it

Scar818

Aqua Man

Aqua Man

Aqua Man

Aqua Man

Titans17

Attachments

Titans17

Aqua Man

Titans17

Aqua Man

Aqua Man

Korona - Grow Light Meter

Titans17

Korona - Grow Light Meter

Need help here, sick plant

Need help here, sick plant

Titans17

Attachments

RealizedReal000

Titans17

Titans17

Attachments

srtj

Aqua Man

Lux Meter (Light Meter) - Apps on Google Play

HOW TO WATER COCO FOR BEST RESULTS.

Marijuana Watering, how media, pot size/shape and environment affect it

Titans17

Titans17

Lux Meter (Light Meter) - Apps on Google Play

HOW TO WATER COCO FOR BEST RESULTS.

Marijuana Watering, how media, pot size/shape and environment affect it

Scar818

Aqua Man

Aqua Man

Aqua Man

Aqua Man

Titans17

Attachments

Titans17

Aqua Man

Titans17

Aqua Man

Aqua Man

Korona - Grow Light Meter​

Titans17

Korona - Grow Light Meter​

Privacy & Transparency

Privacy & Transparency

Korona - Grow Light Meter

Korona - Grow Light Meter