Hey thanks. I dont have any anemones in the tank. You might be referring to the big purple mushroom on top of the rock, or perhaps the Xenia.
What I have in the tank are as follows.
mushrooms on the rock, a couple diferent kinds
Ricordeas Blue, Orange, and Green at the right of the tank in the sand
Xenia. Pulsing and Purple Heteroxenia on the thermometer and the left of the tank.
Green Star Polyps hugging the back right of the rock
The macro algae are as follows:
Caulerpa located in the left corner of the tank, and her den
Red Grape Caulerpa in the front of the tank on the rock
Gracilaria in her den and not visible in the pics
Turtle grass 1 piece in the back left corner behind the rock
Halimedia in the right corner of the tank
and some random stuff from Florida live rock.
Shes a pain as far as taking the 2 species of Caulerpa into her burrow. but she still might be decorating because shes only been in the tank for about a weekish.