Exclamation points on my glass

[Terri Caton]

Anyone know what these things are? They look like a seed with a tail. The seed is fixed to the glass and the tail moves in the current.

 

[ScottR]

Bump

if I had to guess, hydroids but never seen anything like that. Newer tank?

 

[Cell]

Is it just hair algae? Does it respond to touch?

 

[ScottR]

Is it just hair algae? Does it respond to touch?

No way that is hair algae.