Bruce Banner - Feeback on leaves health getting yellowish


ILGM auto Bruce Banner 5-6 weeks approximately.

Average humidity 45%
Average temperature: 75F

Some of the plants leaves are developing a bit of yellowish stains.Until now, this plant did not have the yellow stains.

By mistake, for few hours, this plant was too close to a LED light.
Could it be the heat from the light? Or nutrition issues?

Do you think this plant is healthy?
It seems the plant is beginning the flowering stage.

If you see tiny small black dots: it comes from the installation of the carbon filter. There are no insects.


It looks like magnesium deficiency but it would help to know more info about your grow:

COPY/PASTE the below list into your forum post.

Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so; Or post
NA (non applicable)

    What strain, Seed bank, or bag seed
    Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
    Vessels: Pots, Grow beds, Buckets, Troths
    PH of Water, Solution, runoff (if Applicable)
    PPM/TDS or EC of nutrient solution if applicable
    Indoor or Outdoor
    Light system
    Temps; Day, Night
    Humidity; Day, Night
    Ventilation system; Yes, No, Size
    AC, Humidifier, De-humidifier,
    Co2; Yes, No

Always try to upload a clear picture of any issues you may have to allow the community to assist you.

Add anything else you feel would help us give you a most informed answer should be included. Feel free to elaborate, but short and to the point questions and facts will help us help you in a more efficient manner

It was a lack of nutrients. I didn’t realize that the water level was too low. This plant almost had no water left. We saved it just on time.

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Hi, this is a follow up, the plant is flowering, but for few days was short on water.

Does it look this plant is going to make it? There are more and more yellow leaves. Please see pictures of the plant day after day. Does it look in bad health? Is it getting close to harvest time?

Plant before water shortage

Plant after adding missing water and nutrients

More yellow leaves

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I’d trim the affected leaves off, they aren’t going to help anything anymore anyway. Then get back on schedule and see what you have going on. I’m not sure I’d hit her with nutes just yet, probably just Ph the water and feed enough to get 15-20% runoff then test it and see where the PPM and PH is. That should inform next steps.

You aren’t close IMO, probably best to focus on back to health first.

Looks like magnesium deficiency.

Thank you for providing a template. Here is the plant info. I finally had time to reply and answer the template questions below

Strain: Girl Scout Cookies Extreme Auto
Method: Hydroponics with water pump
Vessels: Hydroponics Container
Water: distilled
Nutrients: FloraNova (Grow or Bloom)
Grow Tent: 2x4
LIGHT+FAN: 2x LED Vivosun AeroLight 100W
Temp (Average AM/PM): 74/68
Humidity (Average AM/PM): 50/50
Ventilation system: 6’ Duct Fan
Humidifier as needed

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I’m going to tag someone who know hydroponics @Myfriendis410


I have a few questions:

Flora Nova Grow and Bloom: is that all you’re running? What is the TDS of nutrient solution? What is the temperature of nutrient solution? How much air to the bucket? Distance between net pot and liquid?

You’re a little low on light: I’d look into at least another 100 watts of LED’s and 200 would give you some additional padding on light levels.

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Geez sorry @Baklaus - I missed that - thought you were in soil. I would blame MK Ultra, but I’m a bigger person than that :sunglasses:


Hi @Myfriendis410 ,

Yes, only FloraNova Grow and bloom, nothing else so far.

Definitely, I would like to add another 100-200w of light.
Even though we have an AC unit near the tent intake, this is a 2x4 tent, and with only 200W LED, it gets easily to 80F if not cooled with AC. I am concerned adding more light only because of the temperature.

Currently we found those tools that were originally purchased for soil. Can any of those tools be used to check the water PH & TDS from the hydroponic solution?

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I tried the above tools, even though they seem for soil only.

In average here are the readings:
PH: 6.7 - 7
Water Temperature: 68F-70F
Fertility: 3-5

I feel we need more reliable measuring tools.