what are these?

[Jayson Ledbetter]

These have started showing up on my glass, any idea what they are?

 

[Mike N]

Hard to tell from the pictures, do they move?

 

[Jayson Ledbetter]

Hard to tell from the pictures, do they move?

Yeah , they will be there one day and gone the next, so they are very slow movers. They are a brown/orange color

 

[Nickolo500]

A type of sea cucumber? We have then in a tiny yellow...