"Flying" bugs of some sort: What are they?

[DaPrawf]

Video of my "Flying" bugs

Very small critters that seem to move by opening their upper and lower shells and flapping them closed to propel themselves. Not sure what they are. Any ideas? (Sorry for the quality but these guys are really small.)

 

 

Edited October 11, 2022 by DaPrawf
Added video

[TheSwissAquarist]

They could be some kind of insect larvae, try adding an (this may sound outlandish) African Butterfly Fis my or another kind of surface oriented fish.

Alternatively try netting them out.

Have a nice day!

[Odd Duck]

No idea what those are but I would expect almost any type of surface feeding fish to eat them.  What type of fish do you have in that tank?

[TOtrees]

Sorry but the video isn't great. It's possible they are daphnias. Sometimes they can get trapped at the surface either by the surface tension of the water or if they get tiny air bubbles under part of their shell/carapace/exoskeleton. If that were the case, you might be seeing dying or exhausted daphnias lethargically trying to do their normal swimming motion, just stuck on their sides in slo-mo. Do you see any similar sized creatures in the water column, with bodies around the same size as what's in your vid that have antler-like structures at the top that that quickly clench and release, to move about jerkily in the water? 

If not that, sorry I have no ideas.