Bicolor Dottyback - Pictichromis paccagnellae
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The Bicolor Dottyback (Pictichromis paccagnellae) is a small, vibrant, and active reef fish known for its striking purple and yellow coloration. Hardy and energetic, it is a popular choice for reef aquariums, adding both color and personality to the tank while maintaining a generally peaceful nature toward non-competing species.
Common Name: Bicolor Dottyback
Scientific Name: Pictichromis paccagnellae
Family: Pseudochromidae
Size: Up to 3 inches (7.5 cm)
Temperament: Semi-aggressive
Difficulty: Easy
Reef Safe: Yes
Native Region: Found throughout the Indo-Pacific, including the Philippines and Indonesia, typically inhabiting coral-rich reef slopes and sheltered lagoons.
Tank Size: Minimum of 20 gallons
Temperature: 74–80°F (23–27°C)
pH: 8.0–8.4
Salinity: 1.023–1.025
Substrate/Decor: Live rock with plenty of hiding places and caves to mimic natural reef crevices.
• Behavior: Semi-aggressive, particularly toward other dottybacks or similar-sized fish; provide ample hiding spots to reduce territorial disputes.
• Diet: Omnivorous—accepts high-quality flake, pellet foods, and meaty frozen foods like brine shrimp and mysis.
• Tankmates: Compatible with most peaceful reef fish, but avoid keeping with similarly sized aggressive species.
• Placement: Introduce last into established tanks to minimize territorial stress.