Hello,
First time grower here and need assistance on some rust spots I am seeing on the leaves during week 6/7 of flower. I have been using the bergmans plant food stage 3 flower time fertilizer per the schedule. Not sure if it’s nute burn or a fungus? I have 2 other plants growing next to it on the same schedule and they are not showing this. Any help is greatly appreciated!
How about pics of the full plant and a support ticket info, please?
A support ticket will help us help you. Can you please fill out a support ticket? Please include what type of water you are using (RO, distilled, tap.)
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
Soil brand and type
• Vessels: Pots, Grow beds, Buckets, Troths
• Runoff pH
• Runoff PPM/TDS or EC
• Indoor or Outdoor
• Light system and wattage
• Temps; Day, Night
• Humidity; Day, Night
• Ventilation system; Yes, No, Size
• AC, Humidifier, De-humidifier,
• Co2; Yes, No
If growing Hydro some additional questions:
-DWC? RDWC? Autopots? Ebb and Flow? Other?
-Distance of liquid below net pot (DWC)
-Temperature of reservoir
-TDS of nutrient solution
-Amount of air to solution
Always try to upload a clear picture of any issues you may have to allow the community to assist you. Pictures taken under natural or white lighting are by far the best.
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 to help you in a more efficient manner.
• What strain, Seed bank, or bag seed
Special Queen #1, Royal Queen seeds
• Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF, Soil brand and type
Soil, FFOF, using an ACI self watering base
• Vessels: Pots, Grow beds, Buckets, Troths
5gal fabric pots
• Runoff pH
N/A, watering the base with a ph of 6.5-6.9
• Runoff PPM/TDS or EC
N/A
• Indoor or Outdoor
Indoor
• Light system and wattage
200W full-spectrum grow light with LM301B LEDs
• Temps; Day, Night
77-80 day, 70-74 Night
• Humidity; Day, Night
40-50 for both
• Ventilation system; Yes, No, Size
6” inline fan
• AC, Humidifier, De-humidifier,
Humidifier
• Co2; Yes, No
No
The overall plant doesn’t look all that bad. These types of issues happen later in flowering when a salt buildup occurs and submarines the root zone pH. I expect your pH is low and PPM is high. The only way to confirm this is to understand your runoff pH and PPM is. Your pH going in is fine, but the pH coming out (runoff) can be very different than what comes out.
If i am watering at the watering base, how do i measure for runoff?
Damn @Phrosty those are gorgeous colas!
Thanks brother! I really hope I don’t have a fungus problem, some of the sugar leaves on it are showing the rust coloring close to the stem 
Got my fingers crossed for you!
The PH will drift in a reservoir, I use auto pots and check the auto tray PH and PPMs frequently. You can check the base res these sit in 
Hey brother, I just watered it this morning, how long should I wait before checking?
I check mine daily or every other day, the longer it sets the more likely it’ll drift
Thanks brother, will let it sit over night and check it in the morning for ph and ppm. As always, thanks!
Target a pH between 6.3 and 6.8 and PPM ~1,000.
So I usually only do one feeding a week, guess I should start feeding every watering? This plant seems to go through a gallon every 2 days or so.
Feed as necessary to maintain a runoff PPM of 1,000.
