The cow fish loves the sea weed sheets and when he eats he rushes the net suctioned to the tank, he goes in hard sometimes and that is the only thing I could think of.... He's housed with a dwarf lion, porc. puffer(small) and a box fish aslo small at the time. I dont believe he's been harrased because I watch them constintly. He is healthy so I dont think he's going to die and I am aware of them releasing deadly toxions. Waters great and It would be a bummer to loose such a interesting fish. I am also looking any other addition that I could make that are more kind of awkard fish... suggestions welcome