are rock flower anemones clown fish safe?

[tangafish]

i have 2 rock flower anemones in my reef tank, one is burrowed into the substrate the other is attached to a rock. I have 2 pairs of ocellaris clowns (orange and black) in 2 different tanks that i have had for several years, i am going to add one of the pairs to the reef tank just haven't decided which one. I would be devistated if one of them was eaten by the anemone, i haven't had any problem so far with any of the other fish of course nothing of them have tried to play in it either so I just want to be sure. does anyone have any experience with this type of anemone?