Just an info site on bulb tip to make sure we are on the same page.
Saltwater Aquarium Invertebrates for Marine Reef Aquariums: Bulb Anemone
Have you fed the anemone? I would start feeding the anemone with a turkey baster, just little squirts of brine, chunks of silver sides, etc. right into the middle. As the anemone strenghthens and gets established, the tomatoes will come around.
How big is it? If two do not fit, they may not want to fight or get territorial, thus they both stay away. Eventually, they should get curious when you give the anemone a lot of attention feeding it, and one will become dominant, and claim the anemone as his home. If both...the better.
Keep feeding the anemone, as it will die of starvation if ignored.
