You could have fungus gnats, also you could have a type of worm or sort of leaf miner. Caterpillars are also a problem that make holes and so are crickets.
Check your grow properly and if you dont see signs, try checking at lights off. You're growing an auto and she's young right now so it wont affect her.
If you can't diagnose a problem, try insecticide soaps and nematodes for your soil.