Black spots

Lukush, Hopefully, the problem lies with your nutrient schedule, as the other growers here indicate, and it's not mold. I'm keeping my fingers crossed:🤞 Check everything thoroughly so you can find the issue. Thanks to Mr_Cannab1sir and HarbingerOfHarvests for helping! Good luck!🌱

I lean towards Nutrient issues as well. mostly because a fungus would be gnarly and hard to get rid off.. A fungus would be more likely if you have no little to no air circulation and no oscillating fan going.. The sudden and dramatic change is worrying tho.. Did this happen over a couple days? After a feeding? or after a dry spell? 18 ml per litre of nutrients seem heavy to me but not all nutrients are the same and that's why I'm gonna recommend you to check your ec/tds of your Run off. If your EC/TDS is fine then you know it's something worse and to start looking at Bacteria and Fungus.. 90% of the grower issues on here are created by the Growers themselves. The other 10% is environment...

Ik denk aan de schimmel Alternaria. Het veroorzaakt bladvlekkenziekte, chlorose en rot. Ik deel een link, lees er goed over alsjeblieft! https://www.royalqueenseeds.nl/blog-hoe-herken-en-voorkom-je-alternaria-bij-cannabisplanten-n979 Wacht even op verdere reacties van mijn medegroeiers, dat je jouw plant niet kapt als het niet nodig is. Dat zou ik jammer vinden. Veel succes!🌱