Ciujbauanswered grow question 4 years ago I do have same problem with leaves , getting eat by something or might be some leaves that got hurt a bit when moving , touching , defoliating .
I haven't found any bugs in my tent , but I did use Naeem oil last week just in case - sprayed on leaves - if you have Naeem oil , spray the plants once a week
About brown/orange dots = cal or mg deficiency , if you have some cal-mag nute use around 0.7-1ml of cal-mag in 1l of water . keep in mind your PPM it might increase if you use .
If you use cal-mag for a week (on every watering ) and still having problems , increase the cal-mag dose . I have some issues with cal-mag on my plants too , increased cal-mag to 1.5ml per l/water , hoping it wont spread that much anymore or even recover