What is the hitchhiker?

[MagicReefer57]

 

[MagicReefer57]

Looks like a baby starfish to me, but I'm clueless!

 

[DaJMasta]

Could be an asterina, but maybe a limpet (unlikely), a sponge, or even a coral - not that uncommon for something to settle on a shell.

We need more details - does it move, what does it feel like, does it have any distinctive texture, etc.

 

[MagicReefer57]

Could be an asterina, but maybe a limpet (unlikely), a sponge, or even a coral - not that uncommon for something to settle on a shell.

We need more details - does it move, what does it feel like, does it have any distinctive texture, etc.

It's soft and smooth. The edges will move if i softly flake it with my nail. However, it doesn’t want to move from that spot.

 

[MagicReefer57]

Now it morphed to this.

 

[DaJMasta]

Now that is an anemone, I guess it was sucked in for transit. Doesn't look like aiptasia, but worth keeping an eye on. Maybe get some blue light on it and see if it fluoresces.

 

[MagicReefer57]

Thank you for the help!