Aquos is a massive, extremely muscular Entherious who shares the many characteristics with a shark, but also vastly resembles a Lizardman in both build and posture. His toned body is dark pinkish in color, while the plate covering his flattened, angular head, sporting a single fin-like protrusion on its front, is dark red, as are the rhombus-shaped markings adorning the back of his neck; similar markings are also found on the plate's back end, but white in color. Small scales are present around his eyes and at the ends of his head, he lacks a visible nose, and has a golden, elongated armored plate covering his chin (furthering his resemblance to a Lizardman). One of his most notable traits are his massive, long arms, each sporting an arched-backwards, fin-like bladed protrusion on the outer side; paired with his somewhat small legs, Aquos' arms effectively reach down to his feet. The fact that he appears to be slightly hunched, alongside his flattened head and ground-touching arms, gives him a stocky look.
Aquos' outfit is entirely colored brown, in varying shades. He wears a dark brown, open short-sleeved shirt, adorned by a number of light brown triangles and trimmed by thick beige fur, over his muscular chest, which is crossed by two dark brown bands, each secured on the front by two small, light grey metallic links. He dons loose, whitish brown pants, possessing prominent dark hems, with an orange-brown band circling his waist, alongside simple brown shoes, with darker toe boxes ending in a stripe towards the ankle.
Aquos appears to be the most serious, level-headed and calm member of the Entherious demons.
- Blade Arms:
Master Hand-to-Hand Combatant: Aquos possesses remarkable skill in unarmed combat, employing it as his main fighting method, seeing as he only resorts to unleashing his powers if pitted against particularly powerful opponents; his melee prowess received praise from both Greed and Gajeel, who described him as a "tough shark" following their close quarters confrontation.
Immense Spiritual Power:
- Underwater Breathing:
- Enhanced Strength:
- Immense Durability:
- Enhanced Swimming Speed:
- Body Hardening: