Gymnothorax Polyurodon 20″

Gymnothorax polyuranodon, also known as the freshwater moray eel or white-cheeked moray eel, is a species of moray eel that is unique for its ability to inhabit both freshwater and brackish environments. Here are some key details:

• Habitat: This eel is found in coastal rivers and estuaries across the Indo-Pacific region, including Southeast Asia, Australia, and nearby islands. It can adapt to both freshwater and brackish waters, though it thrives best in low-salinity conditions.
• Appearance: It has an elongated, snake-like body typical of moray eels, with a dark brown to olive green coloration. The name “white-cheeked moray” comes from the pale or white markings near its head and gills.
• Size: They can grow up to around 90 cm (35 inches), making them relatively large eels for home aquariums.
• Diet: Carnivorous, they primarily feed on small fish and crustaceans. In captivity, they can be fed live or frozen foods like shrimp, fish, and squid.
• Behavior: Freshwater moray eels are mostly nocturnal and prefer to hide in crevices or caves during the day. They can be aggressive toward smaller fish, so it’s best to house them with larger, non-aggressive tankmates.
• Aquarium Care: While labeled as a freshwater eel, they do better in slightly brackish water (with a low salt content). They need large aquariums (100+ gallons) with plenty of hiding places, stable water parameters, and a secure lid to prevent escape.

These eels are fascinating for advanced aquarists but require specialized care due to their size, diet, and water requirements.

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