hi flametail,
thanks for the advice. recently got a purpletipped anemone. so for its been quite stable, staying near my water outlet (rainpipe). BUT it had to sit on my zoos...
I then moved the entire colony of zoos with the anemone on top, to the sandbed. sure enough, the bugger crawled back up to the same spot. but now on a rock instead of my zoos. phew*
In the day, its guarded by my pair of true perculas, occasionally visited by my common clown. however, in the night, the true percs, common clown and clarkii sleep in it.
have a skunk and a tomato clown. skunk too afraid to go near due to the other clowns, but my tomato just cant be bothered by it. strange!