Brain-eating amoeba found?

[NachoBen]

These tiny microorganisms look like flagellated forms of the famous brain-eating amoeba Naegleria gruberi or its more "benevolent" sister Naegleria aquatilis.

https://youtu.be/dVpzm4KSYPc

In the same sample I found an amoeba with a long flagellum that I identified as Mastigamoeba sp., although it could also be the "adult" form of Naegleria.

What do you all think? Thank you very much to all.