Rockbeak Fish are small aquatic creatures with bodies shaped like elongated spheres. As they are short and round in stature, they lack flexibility and rely mostly on their fins for locomotion in the water.

They are often found swimming in small schools of a dozen or so individuals. Together they explore shallow rivers across all regions of the Western Frontier, searching for aquatic plants and conch to feed on. In doing so, they use their sturdy beaks to crush hard shells, or tear apart tough plants.