I bought a bubble anemone yesturday and I am amazed at these things. It was big in the shop, but as soon as the guy came to get it in went to about 1/20 of the size. Then when I got home, after a long aclimatization period, it took him about 4 hrs to stick to the rock, with all the powerheads off. Then I woke up this morning and he has moved about 10cm, and is hanging from a rock upside down!!!! These things are so cool! I am hoping that once he has settled in it will host the clowns.