Black Widow issues with leaves

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From a fellow grower: My problem is the black widow are acting funny there about 7 to 8 weeks old and started to get sick at about 5 weeks and spread to the gorilla glue, do you have an idea what this could be as it’s my first grow with the black widows but I’ve used gorilla glue plenty of times from your site.

  • Strain: 6 plants of each in order 1# black widow 2#gorilla glue 3#train wreck
  • Type (fem/auto/reg): fem
  • Climate (indoor/outdoor): indoor
  • Medium (soil/hydro/details): coco coir
  • pH of runoff or solution in reservoir: reservoir
  • Nutrient mix strength (EC/TDS):
  • Light type & schedule: led 20 hours on 4 hours off
  • Temperatures day & night: day 25° night 24°
  • Humidity day & night: day 55 night 50-49
  • Ventilation: inline fan x2 one bringing fresh air one taking air out
  • AC: fan
  • Humidifier: not this time round
  • De-humidifier:
  • Co2: not this time round

black wid
black wid3024×4032 1.92 MB

black wid 2
black wid 21512×2016 770 KB

black wid 3
black wid 31512×2016 1.17 MB

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2

Not sure how this got missed but it looks alot like the plant is feeding off itself. But it is so young he would have to not feed it and soil have zero food in it for that to happen. It also looks to have a touch of calmag issues. Id flush the soil and then feed it as you regularly would with nutrients/ ph’d to 6.5 and make sure you get about 10% runoff. I just read you are using coco and have no real experience there but we can find a few who do use it to help. @garrigan62 could you help this fella out?