Lordhowensis parasite question

[MichaelScotch]

My reef tank has been up for close to a year and my lord decided to do this when I got back from a fishing trip and I'm not sure what to do or how to explain it. For some reason my lights were dimmer than usual and after cycling power was back to full light but this "bubble" was still there and a day later it's still like this... What do?

 

[Auquanut]

Looks like it's putting out a new head maybe?

 

[Nadalius]

Its growing new heads, My lord does the exact same thing. Looks really plump ya feed it?