Small white anemone?

[Bobby Lee]

So my DT just recently showed two little white critters that look like to me as an anemone as it moves around at the bottom of my tank every once in a while.

Recently haven't added much to the tank other then a small invert a month ago.

 

[Reeferdood]

Looks like a hydroid...

 

[Kaleb W Bellamy]

all i can say is it looks like the an anemone that the pom pom crab carries around to help him eat.

 

[reef lover]

Most likely aptasia.