I have a 55 and a 225. Our Coral Beauty is a real gem. She doesn't care about ANYONE in the tank. She ignores everyone and prefers to be ignored. Never had any conflicts between them.
The Midas Blenny is named Loreal but was nicknamed Clam Chowder. She claimed 2 sections of the tank. A cave and this fake clam. I have a picture of the set ups. The 55 no longer has the plants in it. And the picture of the 225 was shortly after set up. They have both changed quite a bit.