Is this normal Hammer coral anatomy?

[Klyle]

I've been noticing these "bubbles" on one of my hammers lately. A couple weeks ago, just one. Now, two. Is this normal? I have not noticed anything like this before. Otherwise the coral seems happy- other than hosting a clownfish.

 

[EeyoreIsMySpiritAnimal]

I have had euphyllia with bubbles (mostly frogspawn, but I also have more frogs than hammers). Sometimes it’s a precursor to a head splitting, and sometimes it’s just there for a while and then disappears. I haven’t found anything to make me think it’s bad for the coral though.

 

[Klyle]

I have had euphyllia with bubbles (mostly frogspawn, but I also have more frogs than hammers). Sometimes it’s a precursor to a head splitting, and sometimes it’s just there for a while and then disappears. I haven’t found anything to make me think it’s bad for the coral though.

Well that seems logical. This particular hammer is constantly dividing. Maybe I just haven't paid enough attention. Thanks!