I’m not sure what this is, but it seems like an arthropod. While I was waiting my Foldscope to arrive to Argentina, I prepared a small pond water container with some decaying algae, copepods and water fleas.
The first image is a stalk of 3 pictures taken with the Foldscope. The creature shown was less than half a millimeter. The second picture is the same animal shot with a regular macro lens for smartphone.
I would be very happy if anyone has a guess what this little guy is! It’ll make my day 😀.