Gnathanodon speciosus – T.B. | M

Gnathanodon speciosus, commonly referred to as the Golden Trevally, is a visually captivating marine fish prized for its bold yellow and black stripes. This tank-bred specimen ensures better adaptation to captive conditions and reduces wild collection impact.

Care Level: Moderate to advanced. This species requires a well-established aquarium with stable water parameters and ample swimming space.

Temperament: Generally peaceful but can exhibit territorial behaviour towards conspecifics or similar-shaped fish. Best kept singly or in a large tank with plenty of hiding spots.

Diet: Carnivorous. Feed a varied diet including high-quality meaty foods such as frozen mysis shrimp, chopped seafood, and specialised carnivore pellets to ensure optimal health.

Minimum Tank Size: At least 300 litres (approximately 80 gallons) to accommodate their active swimming behaviour and growth potential.

Lighting Requirements: Standard marine aquarium lighting is sufficient; no special lighting needs.

Water Flow: Moderate water movement mimicking natural reef currents is ideal to promote healthy respiration and activity.

Placement: Provide open swimming areas alongside rockwork or artificial caves for shelter. Avoid overcrowding to reduce stress.

Origin: Tank-bred specimens sourced from responsible UK aquaculture facilities.

Maximum Size: Medium variant typically reaches up to 30 cm in captivity.

With proper care, Gnathanodon speciosus can be a stunning and rewarding addition to a marine aquarium, offering both visual appeal and dynamic behaviour.