Hi a few months ago i went out and collected duckweed that naturally grows where i live for my aquarium. there are no fish in the tank currently so i was lazy and just dumped the duckweed in half cup of water and everything. I had a water bug that stayed for a week but it died so i assumed everything else i dragged along died too, especially because i wasn’t taking care of the tank and was letting it sit for ammonia levels to rise out of control blah blah. Unimportant. I noticed tiny dot sized things darting around in my tank kinda like baby brine shrimp. some of them are white with a head and a split tail sort of end and another is a brown dot that looks like a tiny egg but they’re on the surface moving around. there’s another little thing in there that looks kind of like the first thing i mentioned but smaller with one little tail. I’m just curious as to what they are. they’re super small so i can’t get a pic but does it sound familiar?