Gymnothorax javanicus, known as the Giant Moray Eel, is one of the largest and most visually impressive moray eels available for marine aquariums. This medium-sized specimen is ideal for advanced hobbyists with a suitably large tank and experience in managing predatory marine fish.
Care Level: Moderate to advanced. Requires stable water parameters and secure tank setup.
Temperament: Generally territorial and predatory. Not suitable for small or slow-moving tank mates.
Diet: Carnivorous. Feed a varied diet of meaty foods such as fish, squid, and crustaceans. Feeding should be done carefully to avoid aggression.
Minimum Tank Size: At least 250 litres (approximately 65 gallons) to provide adequate space for movement and territory.
Reef Safe: No. This species will prey on smaller fish and invertebrates and is not recommended for reef tanks.
Lighting Requirements: Standard aquarium lighting is sufficient; no special lighting needed.
Water Flow: Moderate water flow to mimic natural reef environments.
Placement: Provide plenty of rockwork and hiding places. Ensure the tank is securely covered as moray eels are known escape artists.
Origin: Indo-Pacific region.
Maximum Size: Can grow up to 2 metres in the wild; in captivity, sizes vary but expect substantial growth.
Due to their size and predatory nature, Gymnothorax javanicus requires careful consideration before introduction to a home aquarium. Always ensure tank mates are compatible and that the tank environment is secure and well-maintained.

