Identification help

[Tejhunn]

Hello fellow microlifers,

Can I get some help identifying this please

Sample from: Fresh water lake with algae in tropical climate. Sample has Rotifer, Anthropods, Paramecium, and this organism in video moves slowly.
100x
Sorry for bad video

Video: https://imgur.com/a/1qqafWn

[Bruce Taylor]

It's the floating form of an amoebozoan. Many amoebae stretch out their pseudopods like that when drifting in the water column. When it lands on a firm substrate, it will assume its distinctive "locomotive form" and begin to crawl. Unfortunately, floating forms can be difficult to identify below phylum-level (Amoebozoa). Locomotive forms are usually easier to place in a family or genus.