Anenome ID Please

Is this a Rock Anenome? I bought this tank fully stocked and this anenome was on a huge 12lb rock or so with a ton of mushrooms. I did not think much of it but as the tank settled in, so did the anenome. He used to be a pale pink but now is a vibrant red/pink with a green mouth area. He is really cool and eats anything I give it. I can not find a lot on these guys so any reading or info you have would be awesome. Sorry for the crappy picture.....my camera battery died right after I took this one. I'll get better ones later. Thanks.

RockAnenome.jpg
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Hoss
 
It's about 2.5-3" in diameter. It's actually a nice size. Smallest fish I have in the tank is a leopard wrasse and they have been good for a few months now. I've started feeding silversides and the color on him has just intensified. He has not gotten any bigger, but just very colorful.

Hoss
 
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