theres a chance that your clowns won't host the anemone
sometimes it takes a while
you might want to tape pictures of clownfish in anemone.... i heard it works for some ppl
i would suggest scaring the fish i have got one to host like that i was told they dont host because they dont have any enemies in captivity so try and scare them by scaring your clown dont go overbourd though jest enough to make him/her hide for a second do that once a day for a week if they dont start hosting stop or they will become frightened of you