Half Black Angel - Centropyge vroliki
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The Half Black Angel (Centropyge vroliki) is a striking saltwater dwarf angelfish, characterized by a front half of tan-gray and a back half of deep black. This semi-aggressive species adds bold color and dynamic movement to reef aquariums.
Common Name: Half Black Angel
Scientific Name: Centropyge vroliki
Family: Pomacanthidae
Size: Up to 4 inches (10 cm)
Temperament: Semi-aggressive
Difficulty: Moderate
Reef Safe: With caution
Native Region: Found throughout the Indo-Pacific, including Indonesia, the Philippines, and Papua New Guinea, typically inhabiting shallow coral reefs and rocky areas with ample hiding spots.
Tank Size: Minimum of 30 gallons
Temperature: 74–80°F (23–27°C)
pH: 8.0–8.4
Salinity: 1.023–1.025
Substrate/Decor: Provide live rock for grazing and hiding; a mature reef tank is recommended.
• Behavior: Semi-aggressive; may defend territory against other dwarf angelfish or similar-sized species.
• Diet: Omnivorous—feeds on algae, flakes, pellets, and small frozen meaty foods.
• Tankmates: Compatible with most semi-aggressive or peaceful reef fish; avoid timid or slow-moving species.
• Reef Notes: Reef safe with caution; may nip at soft corals, clam mantles, or sessile invertebrates.