Little Red Thing, Pls Help

[hashslinging]

This is the furtherest it would come out, when I would move it would retract. Please help ID so I know if it is bad or not. I couldn't get any better footage unfortunately.

I tried to upload the video but it wouldn't work.

 

[MaxTremors]

It’s a little feather duster/fan worm. Harmless filter feeder, though they can spread pretty quickly.

 

[BroccoliFarmer]

It’s a little feather duster/fan worm. Harmless filter feeder, though they can spread pretty quickly.

Are you sure not ‘red bugs’? Look just south east of the prominent red thing

 

[Chrisv.]

This is not a red bug. Just a feather duster. I've never even seen this variety spread much.

A red bug is a tiny crustacean, much smaller than this, that walks all over the place (especially all over your favorite acropora). This duster retracts into his tube and reappears in the same place.

 

[Goaway]

Are you sure not ‘red bugs’? Look just south east of the prominent red thing

It looks like a bit of coraline algae. Or deformed red bug.

But the one in the tube, is a filter feeder, harmless. The little blotch below, it could be several things.

 

[MaxTremors]

It looks like a bit of coraline algae. Or deformed red bug.

But the one in the tube, is a filter feeder, harmless. The little blotch below, it could be several things.

Could be planaria, but could be nothing too. If it’s planaria, there’ll be more.

 

[Goaway]

They'll have to keep an eye out. Photos have little detail a lot of the times. If it moves, I would worried. It it keeps there. Algae.

 

[Chrisv.]

Take pictures. The pests you have expressed concern about are motile. They will not be in the same place later today.

 

[Isopod80]

The spots are Spirorbid worms, filter feeders. The red crowned one is a harmless tube worm.