Found these guys on my glass

[Bgee42086]

Can anyone help ID these thanks

 

[Lionfish Lair]

Do they slither like a flatworm or crawl like a pod?

 

[Lionfish Lair]

Where the picture isn't very clear, maybe a video with movement will provide more hints.

 

[Bgee42086]

Do they slither like a flatworm or crawl like a pod?

They crawl no slither ill make a quick video

 

[Bgee42086]

They crawl no slither ill make a quick video

Cant seem to load a video [emoji26]