Help ID this tiny hitchhiker

[GUFan]

I dipped my zoos in a H2O2 saltwater mix and these little guys came off. I haven't been able to ID them the closest thing I've found is a Serolid from https://www.lionfishlair.com/hitchhikers-guide/
But it still doesn't look quite right. This thing has two brownish stripes, eye spots, and no apparent antenna. They're tiny, maybe 1mm long, I had to get out my good Canon camera and 100mm macro lens to get a semi decent shot of them. They're also pretty active, but that may just be because of the H2O2.

It doesn't match any of the typical flatworm photos.

Anyone have any other ideas?

 

[KJ]

Isopod sp. @Lovemyreef2015

 

[Snookin]

Polyclad flatworm

 

[Style185]

Looks like a Chiton to me

 

[Lovemyreef2015]

Isopod sp. @Lovemyreef2015

Agree

 

[GUFan]

I’m not finding any photos that look like an isopod, polyclad, or chiton. I appreciate the help, but I’m not sure this is solved.

They seemed to be soft, but with being so small I’m not confident that they didn’t have a shell.

I think I should get an inexpensive microscope. I’ve been wanting one anyway and it would certainly help if I could get a clearer photo.

Thanks everyone for the help.