Hmm. And the clown doesn't come out to eat now? I have a mated pair of clownfish and they have not taken to any of my anemones, but they eat. A lot.
I was reading up on clownfish, and they are supposedly dependant on thier host anemone to survive, if they have a host. I'm wondering if you should try to feed your anemone, and watch the clown to see if he is eating the scraps from the anemone. This was taken straight from wikipedia, so use your own judgement...
"Symbiosis describes the special relationship between clownfish and sea anemones. It has been suggested that the activity of the clownfish results in greater water circulation around the sea anemone. In addition to providing food for the clownfish, the sea anemone also provides safety due to its poison. The Clown Fish is dependent on the Sea Anemone for its daily bread. After the Anemone paralyzes and eats a fish, the Clown fish will polish off the remaining uneaten bits and pieces. In return, the Clown Fish helps to keep the Anemone free of dead tentacles by eating these. The Clown Fish also helps the Anemone get food by using its bright coloration to lure unsuspecting fish into the vicinity of the Anemone. This symbiotic relationship with the Anemone makes the Clown Fish one of the most curious creatures living in water. """'
Also as a side note, my brother has a couple different varietys of clownfish and the only kind that has taken to the anemones is the Maroon Clown, the one with the yellow bars lined with a black/blue stripe. I have the standard Nemo style clowns, and like I say they will not take to any of the anemones I have.