White spots

You’re totally on the right track, those white spots do look like thrip damage, even if you didn’t catch them under the microscope. They’re sneaky little guys, and the white marks are usually their feeding scars: tiny punctures where they’ve sucked out the cell contents. Try checking the undersides of the leaves, especially during lights-off or early morning, that’s when they’re most active. For treatment, you can: • Use neem oil or an insecticidal soap (apply during lights off to avoid burning) • Try a product like Spinosad or Beneficial insects (like predatory mites) if you’re into organic methods • Keep humidity and airflow under control, and remove affected leaves if it’s not widespread Hope you get them under control fast :)

bruh what a gathering of plant doctors here one dude guessing light burn like its 2003 one dude screaming leaf miners like its pokemon my man tru-tra-wikipedia writing a novel while the thrips doing the cha-cha on the leaf rn and yan402 giving grandma organic recipes in german like its a cooking forum respect tho its early thrips damage 100% silvering spots sucks juice out the leaves check undersides with light off yellow sticky traps neem or spinosad spray cry later also clean your grow tools once in a lifetime maybe idk stay safe kings but fr sometimes less typing more looking at plants works wonders brotherman good luck

hum... looks pest like to me, but not a pattern that is standing out to me. maybe something else but I am leaning towards a pest. I've seen leaf miners and they tend to make squiggles under the leaves not dots. and thrips tend to be more sparatic and not in close clusters like this. There is a small brown thing in the last pic on the center of the leave main vein. I am wondering what this is and if maybe that is the pest. and if you have checked the backside of the leaves for anything. like maybe scale or mealy bugs. The dots seem to big for spider mites so I think thats outside of the scope, and they are the worst ones to get. Might be good to be proactive and just treat it with a broad spectrum pesticide as its in veg and this is good time to spray the whole plant. then if it does not improve you know it is something else, maybe fungal/virus/bacteria or something in the environment. If you sprayed anything on the leaves like a fine mist and then had lights on this could also be a thing. but I doubt it.

Looks like light damage or lack of nut

Doesn't look like powdery or downy mildew. There’s no fuzzy coating, no grey or violet underside, and no oily lesions—so fungal causes are very unlikely here. Someone mentioned leaf miner larvae or fly damage, but these don’t resemble typical miner trails. Leaf miners usually leave winding tunnels within the leaf tissue. Your spots are isolated, surface-level, and not patterned like insect paths. Early thrips damage usually shows as silvery streaks, scraped patches, or tiny black specks (feces), especially on newer leaves—but your photos don’t match that either. Try a simple test: gently wipe a spot with a damp Q-tip. — If it comes off or smears: it's likely residue (spray, minerals, etc.). — If it stays and the leaf surface feels intact: then it’s likely superficial damage or environmental stress, not pests or mildew. Bottom line: no clear signs of pests or disease. Keep airflow good, avoid spraying under lights, and just monitor for changes. Looks stable for now.

They are leaf miners, they work inside that leaf they eat everything and comes out when the grow up , get predatory mites or neemoil and u get rif of it :)