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Brown Garden Eel (Heteroconger longissimus)

Find Brown Garden Eel 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.

Brown Garden Eel
Photo: Diego Delso · CC BY-SA 4.0
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Where to buy Brown Garden Eel

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

  • Saltwaterfish

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  • Amazon

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  • Petco

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About Brown Garden Eel

Heteroconger longissimus is a slender, elongated eel with a brown to tan coloration and a distinctive yellow-gold stripe running along its dorsal surface. The body is cylindrical and can extend to nearly 4 feet in length. Garden eels characteristically inhabit burrows in sandy bottoms and exhibit a unique hovering behavior near their burrow entrance.

Key facts

Diet Details
Feed small live or frozen zooplankton such as copepods, mysis shrimp, and brine shrimp. Multiple small feedings daily are preferable to one large feeding, mimicking their natural grazing behavior on plankton drifting past their burrow.
Reef safety
Reef Safe
Difficulty Level
Brown garden eels are challenging in captivity because they require specific sandy substrate conditions, excellent water quality, and frequent small feedings. They are also prone to jumping and may hide excessively if stressed.
Care Requirements
• Tank: 75 gallons minimum, deep sand bed (6-8"), low flow areas • Water: 72-78°F, pH 8.1-8.3, SG 1.023-1.025 • Diet: Small meaty foods (mysis, copepods), frozen preferred • Behavior: Reclusive, burrows in sand, rarely leaves shelter • Notes: Difficult to acclimate; needs calm environment, cannot coexist with aggressive feeders
Temperament
Peaceful
Diet
carnivore
Care Level
Hard
Origin
Indo-Pacific region, including the Red Sea, East Africa, and across to the Hawaiian Islands and French Polynesia, typically found in coral reef environments at depths of 5-40 meters.
Common Health Issues
Marine ich, Fin Rot, Swim Bladder Disorder, White Spot Syndrome, Bacterial Infections
Min tank size
75 gallons
Water Parameters
Temperature: 72-80°F pH: 8.1-8.3 Salinity: 1.02-1.025
Family
Congridae

Looking for a hobbyist seller?

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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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