This is a mosquito larvae about 1.8mm long. I've put the larvae on the slide inside a tiny droplet of water so it can continue to move around slightly. You can clearly see the larvae circulatory system in motion. I haven't put any audio to it, but for those wanting to know what they are looking at, have a look at this first. https://en.wikipedia.org/wiki/Mosquito
https://www.facebook.com/100012088417176/videos/246917265721219/
Looks like the upload to Facebook didn't do the video justice.
Ray