Caribbean Cocoa Damselfish
Stegastes xanthurus
The Caribbean cocoa damselfish is a small reef fish in the western Atlantic/Caribbean region, usually seen hovering close to hard coral and rocky reef. It is territorial and feeds mainly on benthic algae, which it aggressively defends from other grazers.

Identification points
- Small, deep-bodied damselfish with a bright yellow tail.
- Dark brown to dusky body coloration with a contrasting paler chest or belly.
- Rounded dorsal profile and the typical damselfish shape with a short, compact body.
Habitat
Shallow coral reefs, patch reefs, and rocky reefs with good algae growth, typically in clear tropical water from very shallow surge zones to moderate depths.
Bait notes
Not a target species for bait fishing and rarely taken intentionally. Small pieces of shrimp, squid, or tiny marine flies/lures may draw strikes from curious individuals, but most anglers do not fish for it.
Behavior
Highly territorial; adults cultivate and defend small algal gardens on live rock or coral. It is a constant picker of filamentous algae and small benthic invertebrates and will chase intruders from its patch.
Caution
Reef-associated fish from tropical waters; consumption is uncommon and not generally recommended as a food species. Avoid collection or harvest where reefs are protected or local rules restrict damselfish take.
Fishing notes
Best encountered visually while reef snorkeling or during reef aquarium collecting, where legal. If handled at all, use very light tackle and minimize stress; this species is better observed than pursued.