The LFS said it was Spirulina??? Man don't trust them for ID's!
The only thing I can think of that sort of sounds like that is "
Cynarina" (but they're a little different, I don't think it's that). Anyhow I could be wrong that it's not a chalice or Echinophylla, but trust me, it's not Spirulina. Spirulina is a cyanobacteria, ... and a really good fish food (apparently people eat it too ?!) My sailfin tang will go nuts for Spirulina flakes.. He eats it out of my fingers.
Anyhow sorry for the hijack. Whatever it is, it is a "nice coral."
