Evicting a tube anemone.

[350gt]

I was just wondering if there was a good way to get a tube anemone out of a rock he found a home in. As soon as he feels threatened he tucks to far in to try and pull him out safely, even though I doubt tugging at him will do any good. Although he looks cool in his spot he is taking up a good chunk of my tank and would love the space for more peaceful species... I could remove the rock but it would require a major overhaul on the rockwork as its a fairly large piece on the bottom of the pile.....



Any advice?