Brown Hydroids

[Coasting]

Hard to tell what that is in that picture.
If it's just 1 and you're not sure what it is, break out the superglue and smother the thing, then cover the area and the super glue in epoxy.
These were mine

[Slyguy00]

mine look exactly like that but they are green? Iv smothered everyone i can find in glue and so far so good.

[MarkoD]

ok here are the pictures.

they seem to close up when shaded, they kind of react like a clam

[MarkoD]

the tube is flexible and not rigid

[toytech]

Soft tubed feather dusters , same as the ones in my sump to a T .

[MarkoD]

How do I get rid of them?

[don.ald]

I don't think you can simply get rid of them? I'm fortunate since my blue clove infestation hides them