Anyone know the scientific name of this Diatom?

[yzaylakeepsfish]

I suck up a diatom using a pipette in my shrimp tank and put it under a microscope.This diatom is everywhere no matter what habitat it is in. I found also some flourishing in my Nitrite container with no air supply feeding only on algae.

 

[MaloK]

looks like an infusiora shoe (Vorticella),

Does it have the "J" like on this pic and can they move freely in the water ?

They look a lot like paramecium but they can't swim.

 

[yzaylakeepsfish]

They can crawl and swim. They run/swim away when touched.

 

[MaloK]

If you can't see flagellum or pseudopod when they move.

I would go for Paramecium or Colpoda, they are ciliated protozoa that can move rapidly through water using tiny hairs around them.

 

[yzaylakeepsfish]

If you can't see flagellum or pseudopod when they move.

I would go for Paramecium or Colpoda, they are ciliated protozoa that can move rapidly through water using tiny hairs around them.

I manage to found another one but this time it has antennae and hair/legs (see attachment). I think this is the adult form. It looks like a sibling of the Daphnia, they have the same curled fetal position like Daphnia.

 

[MaloK]

That is a seed shrimp (Ostracoda)

 

[yzaylakeepsfish]

That is a seed shrimp (Ostracoda)

Seems like it! Thank you.