The Eastern Fortescue (Centropogon australis), also known as the Fortesque, Southern Fortescue, Fortie, or Southern Bullrout, is a small, venomous marine fish endemic to the coastal waters of eastern and southern Australia. Belonging to the family Tetrarogidae, this species is commonly found in estuaries and coastal bays, often resting motionless on sandy bottoms or among seagrass beds
Key Information
• Small fish safe: ⚠️ With caution (may prey on very small fish)
• Small invertebrate safe: ⚠️ With caution (may consume small crustaceans)
• Coral safe: ✅ Yes (does not harm corals)
• Minimum tank size: 115 litres (30 gallons)
• Adult size: Up to 15 cm (5.9 inches)
• Diet: Carnivorous, feeding on small fish and invertebrates
• Be aware of: Venomous dorsal spines; handle with extreme caution
Appearance and Colouration
The Eastern Fortescue exhibits distinctive features that aid in its identification:
• Body Colouration: Cream to brown with dark irregular bars on the head and along the sides.
• Fins: Possesses 15 or 16 strong dorsal fin spines and a large spine on each side of the snout that can be projected forward when disturbed.
• Scales: Small scales cover the body, with a broad naked area from the nape to below the anterior part of the spinous dorsal fin.
Natural Habitat and Behaviour
Centropogon australis is commonly found in estuaries and coastal bays, inhabiting sand and seagrass areas at depths ranging from 0 to 30 meters. During the austral spring, they become extremely common as they gather for reproduction. These fish are often seen resting motionless on the bottom, sometimes in large numbers.
Aquarium Care
While not commonly kept in home aquariums, experienced aquarists interested in housing Centropogon australis should consider the following:
• Tank Size: A minimum of 115 litres (30 gallons) is recommended.
• Aquascaping: Incorporate sandy substrates and seagrass-like vegetation to mimic natural habitats.
• Diet: Provide a carnivorous diet consisting of small fish and invertebrates.
• Tank Mates: Select non-aggressive species of similar size to avoid predation or bullying.
Due to their venomous dorsal fin spines, caution is advised during tank maintenance to prevent injury. The pain from a sting can be alleviated by immersing the affected area in hot (but not scalding) water.