Small white ‘lice-like’ critters flitting about my fish tank?

In my 24G freshwater fish tank (which contains danios, 2 female bettas, a bunch of guppies, a pleco, and a tiny snail, I noticed little white/clear things kinda jumping around on the bottom and sides of the tank (they mostly stay towards the bottom though). And when I say little I mean about the size of the period at the end of this sentence, maybe slightly bigger. They are mostly round but sort of thinner at one end. kinda like than apostrophe ;. Kinda look like lice or mites or baby sea-monkeys or something. They are too small to be guppy fry (I’ve had guppy fry before). Are they danio fry? are they parasites or mites or something of the like? should I be worried? what should I do about them? Thanks in advance.