What are these?

[Cjohnson2]

I have a anemone that I'm not sure if it's good or bad, anyone know? Also I found the other thing floating around the bottom of my tank. What is it?

 

[garethwood]

the 1st picture im sure is just a feather duster a harmless filter feeder which will pop up all over the place on your rock.. as far as im aware they dont cuase a nuisance. the other picture could be long lash polyps but im not sure tbh? they could also be a type of tube worm but maybe someone else will have other ideas : ) either way im sure both are harmless good freebies

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[Reincarnate]

That first picture looks like some sort of sea anemone IMO. Whether it's a pest or not I don't know. I'm not really sure about the other two.

 

[Cjohnson2]

I'm almost positive the first is a type of anemone, more curious if it's good or bad.

 

[mcgyvr]

Rock flower anemone..

 

[Maritimer]

That first picture might well be a rock-flower ... are the tentacles as bumpy as they look from here? If so, definite good guy!

The other . . . almost looks like something that _used_ to be part of something that _used_ to be alive . . .

~Bruce

 

[Ron Reefman]

The first pic looks like some kind of small (for now) anemone, and I don't think it's a rock flower anemone. I don't think I've ever seen one quite like that, but it's a tough call with just one little pic.

The other 2 are completely unknown to me. I'm kind of with Maritimer, it looks like what's left of something that used to be alive. Or some kind of soft or LPS coral that got torn apart when rocks were moved?