Seaish rest on the ocean floor, eating food swept there by the ocean currents. First-time divers often look out for Seaish, as Seaish release psychic energy that discourages predators from approaching.
When it unleashes its psychic power from the protuberance on its head, the grating sound of grinding teeth echoes through the area. The poisonous barbs all over its body are highly valued as ingredients for making traditional herbal medicine.
