Aggregating Anemones: Gangsters of the Sea?

Imagine what Hollywood would do with a film about anemones. Take aggregating anemones for example. They are relatively small, but these carnivores are well armed and can be surprisingly aggressive toward their neighbors, so you might imagine they’d be cast in a gangster movie — with lots of special effects like fiery explosions and crash scenes. Their tentacles can fire venomous miniature harpoons that repel potential predators including anemones unlike themselves. Mother Nature is perfect for the “good cop” role of peace negotiator. In real life, there is a natural order; neighboring colonies created of different clones of the same species as well as those of different species establish “demilitarized zones” to minimize the energy they have to expend to establish and maintain their turf.