white spots

Hey^^ First of all, this is my first autoflower grow so I have no actual experience in handling this kind of stuff. To make it a bit easier, I'll just use formular given in the pinned thread; Problem: Weird, tiny white spots on the first leafs of my seedling. Dont know if it's a problem, but...

:crying: Doc is having an anxiety attack! What has infested my garden? I thought it was calcium precipitates, but it is not. I can see a few bugs on the back side of leaves. They are elongated and yellowish, semi transparent. No signs of webs, just these feast on my leaves. Should I...