what is this? shroom or Blastomussa?

[smilodon]

I think it's a Blastomussa wellsi, because Blastomussa merletti looks hairy than the Blastomussa wellsi, and the one in the picture didn't look hairy.

 

[CoralBandit]

how big are they? size of a nic [FONT=&quot]kel = merletti
size of a half dollar or mushroom = wellsi
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[Aqua Amie]

Nice Blasto! Perhaps you just turned the lights on or running just actinic in this pics, but looks like he might be really happy out a little more in the light...also, is there a chance he is stinging the beautiful zoas that are closed up next to him?
Nice piece though!