What is this?

[DartyReef]

Does anyone know what these are? Mysteriously appeared a couple days ago.

 

[Reef By Steele Verified Sponsor]

They look like some type of anemone. Possibly aiptasia but their color doesn’t seem right. Might be the purple is reflecting from the adjacent items. Here is a hitchhiker guide I use.

Reef Tank Hitchhiker ID · Saltwateraquarist.com

Some reef tank hitchhikers are good, while others are bad or neither. Here is a reef tank hitchhiker ID list for the most common hitchhikers.

saltwateraquarist.com

 

[TokenReefer]

Hydroids?