Tiny aliens in my tank?

[Leila]

So when we changed our tank water today, we noticed all these little dark spots swimming around at the bottom of the water we sucked out. They’re too small to even describe a shape, altho a larger one looked kind of like a brine shrimp. Any idea what these lil’ guys could be? Fish are all healthy, plants too. We have 4 Amaro shrimp that are also doing well.

 

[SaraB]

Do you have a picture?

 

[Leila]

Do you have a picture?

Sadly, these things are too teeny-weeny to take a picture of that would be of any help. Just picture small dark dots zipping around randomly.

 

[SaraB]

Lol yeah. I guess it would help if you had a microscope. I know there are some cheaper handheld ones if you are super curious.
Might be some species of water flea.

 

[Leila]

Lol yeah. I guess it would help if you had a microscope. I know there are some cheaper handheld ones if you are super curious.

Might be some species of water flea.

Thank, Sara. Hmmmm....I looked up images and videos of water fleas and in the videos the fleas look lighter than what we saw. Definitely not what the larger one looked like. Our magnifying glass was not helpful.