i was thinking a mag def but now i have no idea.. any help would be GREAT

Hi, ich hatte bei diversen Sorten das gleiche Problem. Anhand der Bilder würde ich auch auf Cal/Mag Defizit tippen. Zumindest habe ich 0,3-0,5 Calmag pro Liter von BioBizz zur Nährlösung hinzugefügt. Bei meinem laufenden grow trat das Problem auch wieder auf. Meine Mädels werden aber auch ohne Co2 bei ca. 1000-1100 PPFD getoastet. Da saugen die alles aus dem Substrat😀 Viel Erfolg dude!

The spotting looks to me like an issue with Calcium and the yellowing edges could be potassium. https://420life.com/wp-content/uploads/2021/10/Marijuana-Leaf-Deficiency-Chart-scaled.jpg

Hey there how's it going I would start with checking the soil ph by checking the runnoff water ph level. Also maybe you over watered the plant? Also I see lots of yellow sticky traps? Do you have fungus knats. If sonita possible it's root damage from the fungus knats they like to eat roots

I took a gander at your diaries. If these are the plants from the Lit farms grow, I noticed you’re in 1 gallon pots and the diary was updated 19 days ago. I reckon the first step to solving this problem would be to transplant them into a bigger pot and they should bounce back. I’m willing to bet they’ve outgrown their home. Everything should remedy itself with some fresh soil and whatever type of nutrients you use.