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
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
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.
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.
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?