Among the other strange behaviors of this damsel, who buzzes like an electrical device, loudly; who will host an anemone (magnifica) and who is definitely the tank dominant, she does move sand. She gets under the rockwork and blasts sand with her ample tail, quite energetically...piling up 8" heaps in one corner, but no fear, sand does not stay put for long in a heap.
I'm a little concerned about my yellow watchmen, but the tank is large enough and the rockwork complex enough I think they'll be fine. But sand-sitting corals could have trouble with this energetic species.
I'm a little concerned about my yellow watchmen, but the tank is large enough and the rockwork complex enough I think they'll be fine. But sand-sitting corals could have trouble with this energetic species.