Leaf edges turning black

3 weeks into flower. Organic soil grow. Indoor led.edges of leaves turning black.


Do you know your runoff ph and ppm? Looks like it could just be a phenotype coming out and developing other other colors. Got any whole plant shots?

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Copy and paste the support ticket and fill it out we can better help from there
-What strain, Seed bank, or bag seed (photo or auto)
-Age of plant
-Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
-Vessels: Type and capacity of container (fabric, plastic, etc)
-PH and TDS of Water, Solution, runoff (if Applicable)
-PPM/TDS or EC of nutrient solution if applicable
-Method used to measure PH and TDS
-Indoor or Outdoor if indoor, size of grow space
-Light system List brand and wattage/spectrum
-Actual wattage draw of lights
-Current Light Schedule
-Temps; Day, Night
-Humidity; Day, Night
-Ventilation system; Yes, No, Size
-AC, Humidifier, De-humidifier,
-Co2; Yes, No

Strain is rainbow belt 3.0. And i was planning on checking the runoff tonight. It has been hot on my porch (up to 85) and no co2 so i thought that could be it. I also think i started my build a bloom fertilizer a few weeks late . I guess it takes a couple weeks to kick in
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