My pair have 5 different BTA clones to choose from, 1 inch - 3 inches. What do they do? Swim in the top third of the tank all day without going near any anemones

Almost 1 month already, but if they never do host an anemone, that's their right I guess. When I turkey-baste food into the anemone, the clowns will even swim in to steal food, but that's about the only time they even look at them.