Just noticed these today. Any ideas??
It"s called the plant doctor look at the pics of the leaves match up to what yours looks like, then read what the problem is
Good info, but it didn’t really have the problem displayed that I’m having.
Closest I could find was Spider Mites…
My first Think it is there are trips.
(FRANKLINELLA OCCIDENTALIS , TRIPS TABACI ETC…)
Look under the leaves, and if you find this :
You have aphids. If not, it’s most probably calcium deficiency (my first bet).
So, fill out the support ticket, @LV2GRW, to help us to help you better
Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so = NA
ILGM Support Ticket:
What is the strain and type(unknown bag seed, strain name, regular seeds, feminized seeds, auto-flower, etc)?
Indoor or Outdoor? If outdoor, planted in ground or in a container?
Size of space (max height and area, length/width)?
Soil or Hydro? Type of Medium used? System type?
pH? Of the soil or medium (root zone/reservoir/run-off) and of the water and/or nutrient mix that is fed to the plant?
Type and strength of nutrients used? NPK? EC/TDS/PPM levels? Of what you feed it as well as what is in the water by itself and in the soil/medium (run-off), or reservoir.
Temperature? Day vs. night temp or highest and lowest temps? Root zone temps?
Humidity %? Day vs. night
Light system/watts/lumens/FLUX/PAR?
Ventilation system? Size? CFM? CO2? AC, Humidifier, De-humidifier?
Number “weeks/days” from into Season, Vegetative Growth or Bloom/flowering?
Add anything else you feel would help us give you a most informed answer. Feel free to elaborate, but try to be brief and to the point. Short and to the point questions and/or facts will help us help you
~Al 
I would check the underside of the leafs with a magnifying glass and see if there are any unwanted critters under there. Could be something munching in your leafs.
