Ocellarius will host the condylactus anem eventually... condylactus anem will NEVER host the clownfish long term.. Condylactus is known to open its big mouth and swallow up a clown.. just because clowns are immune to a sting doesn't mean they can't be swallowed, other anemones just know better not to swallow a clown, condy on the other hand hate their presence and will attempt to get rid of them much like a tube anemone would. I have 2 small clarkiis in a 10 gallon with two condy anemones (it was short term), didn't take long for 1 clarkii to just randomly disappear... then the other disappeared a week later... found nothing on the floor and one of the anemone was all puffed up like it was holding something. Tank had the sorriest excuse of a filter running it so I know it ain't the filter that sucked up 3" clowns. Anemone crabs and anemone shrimp won't go near it's mouth like a clownfish would to take care of their host and condys don't seem to mind them too much but they hate the movement of clownfish. Clownfish will host anemones eventually but it will take a really really long time... sometimes never, it all depends on whether the clownfish find it. In a large setup clownfish my stay near one rock and make home, and sleep there.. never coming in contact with the anem.. so sometimes its best to catch the clowns, put them in a container with the anem, see if they go in it since they are isolated together and got no where else to sleep, and then slowly add them back without disturbing them too much. If you bought a condy for the small expense then you are far off with this hobby... Going cheap will just cost you more expenses in deaths and wasted time.. You going to buy a cheap condy... then you might need to replace a clown... buy another anem... and be stuck with another condy..