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Giant Moray (Gymnothorax javanicus)

Find Giant Moray across reef-livestock retailers and from fellow hobbyists on ReefDock. Compare sources, check live pricing where available, and review source-tank parameters on Reef-Trak-verified fish listings before you buy.

Giant Moray
Photo: Diego Delso · CC BY-SA 4.0
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Where to buy Giant Moray

ReefDock searches the following reef retailers for this fish. Click through to see the live price.

  • Saltwaterfish

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    Search Saltwaterfish
  • Amazon

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    Search Amazon
  • Petco

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    Search Petco

About Giant Moray

Large, robust moray eel with a thick cylindrical body and a wide mouth filled with sharp teeth. Coloration is typically dark brown to greenish-brown with lighter yellow or white spots and mottling across the body and head. The gill opening is a simple lateral slit behind the head.

Key facts

Difficulty Level
This is an expert-level species requiring a very large tank, careful feeding protocols, secure enclosure to prevent escape, and experienced handling. Aggressive temperament and predatory behavior make it unsuitable for community reef tanks.
Temperament
Aggressive
Reef safety
Not Reef Safe
Appearance
Large, robust moray eel with a thick cylindrical body and a wide mouth filled with sharp teeth. Coloration is typically dark brown to greenish-brown with lighter yellow or white spots and mottling across the body and head. The gill opening is a simple lateral slit behind the head.
Water Parameters
Temperature: 72-78°F pH: 8.1-8.3 Salinity: 1.02-1.025
Family
Muraenidae
Min tank size
180 gallons
Max Size
59
Care Level
Expert
Common Health Issues
Parasitic infections, fin rot, mouth/jaw infections from food injuries, stress-related disease
Origin
Indo-Pacific region from East Africa and the Red Sea to Hawaii and the Great Barrier Reef. Found in tropical coral reef and rocky habitats at depths from 3 to 70 meters.
Care Requirements
• Minimum 180 gallon tank with excellent filtration and strong water circulation • Temperature range 72–78 °F • Salinity 1.020–1.025 SG • Provide plenty of rocky crevices and hiding places; morays feel threatened in open tanks • Feed every 2–3 days with appropriate-sized meaty foods; use feeding tongs to avoid hand injury • Secure tank cover essential—morays are powerful escape artists

Looking for a hobbyist seller?

ReefDock's marketplace lets reef-keepers sell fish directly to other reef-keepers with Stripe-secured checkout and live-arrival photo confirmation. Browse current fish listings on ReefDock, or list your own.

Verify the source tank before you buy

ReefDock is the sister app to Reef Trak. Sellers who maintain a Reef Trak tank log can publish source-tank parameters on eligible fish listings — so you can see the conditions a fish was raised in before you buy. Log this fish on Reef Trak.

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