Arc-Eye Hawkfish

About

The arc-eye hawkfish (Paracirrhites arcatus) is one of the most recognizable hawkfish in the hobby, named for the vivid horseshoe-shaped marking that wraps around each eye in shades of orange, blue, and white. A white or pale lateral stripe runs along the rear half of the body, contrasting with the warmer tones toward the head, making identification in the wild or in a display tank pretty straightforward. Native to Indo-Pacific reefs, this species is typically found perched on coral heads and rocky outcroppings, scanning the surroundings for small fish and crustaceans. That perching habit is a hallmark of hawkfish in general. They lack a swim bladder, so they rest on surfaces rather than hover mid-water. In the aquarium, the arc-eye brings a lot of personality but also a predatory streak that demands careful thought about tankmates. Small shrimp, tiny gobies, and other diminutive reef residents are very much on the menu, so this fish is generally better suited to a fish-only or FOWLR setup rather than a full invertebrate reef. With robust, larger tankmates it tends to hold its own confidently. Intermediate experience is a fair call. Not a difficult fish to keep, but one that needs a thoughtful setup to thrive.