I had a decorator crab for about 2 years, then I had to take it back to the Fish store. She was living in display tank, and older man bought the whole set up. My LFS still sees her because they service this mans tank.
It was the funniest crab, don't get me wrong if made me mad several times. But I do miss her. She stole all the feathers off the feather dusters and had them on her head. My husband thought it was great, said she looked like an indian sitting on top of the LR. She clipped all the mushrooms off and had them placed all around her in a perfect circle. She even had them on her knees. She stole the anemone from the clowns and wore that for a few days. The best was when she molted, she was sitting on top of the LR taking all her stuff of the molt she just came out of.
She started taking out some fish, I was afraid she would kill more so I took her back to LFS. That is where I found out she was a girl, they said she was looking to mate with another crab and the fish had something she craved. She killed 3 blue spotted jawfish. She was sitting once agian as proud as can be up on the LR eating the jawfish.
She was huge, when I bought her she was about the size of a 50 cent piece. When I got rid of her she had a leg span of about 5 1/2 ". She kinda looked like a alaska snow crab.
I have not seen one like her since. My husband would kill me if I brought another one home.