Got this little guy as a hicthiker on a new coral I bought today (pink cauliflower). Is it some kind of limpit? Has a hard spot on the top there (feels about fingernail thin though and looks almost transparent).
Limpits are usually very conic. Your down from above shot completely negates that dimension! LOL So it is hard to tell. If it is like a little dunce cap moving along slowly then yes. Otherwise ?