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Can anyone please help me identify this type of filamentous algae?
Thanks

Can anyone help me identify this? There seems to be two of them. The one above looks like it could be a Vaginicolidae but I am unsure about the bottom one. It looks like it is filter feeding?
https://www.youtube.com/watch?v=xLW1t1AKEW8

https://youtu.be/cFztUSJX-9U
Could anyone please help me identify this?
They seem to move around by crawling around spirogyra algae

Thank you

Found this on a spirogyra sample at 400x magnification. I can't seem to identify it. I have spotted many others that look similar to it and this is the best image I have.