Common name: Dusky Garden Eel
General information
The Spotted Garden Eel, Heteroconger enigmaticus, is a fascinating and unique addition to any large marine aquarium. These eels are known for their distinctive spotted patterns and slender bodies, which can reach up to 40 cm in length. They are a part of the Congridae family and are found in colonies in sandy substrates in the wild, where they feed on zooplankton passing by in the current.
Garden Eels are generally shy and reclusive, rarely venturing far from their burrows. They are interesting to observe as they sway with the current while partially buried in the sand.
Details
- Recommended minimum tank volume
- 150 liter (40 gallons)
- Salinity
- S.G. 1.023 to 1.026
- Temperature
- 22 to 26 °C (72 to 79 °F)
- Acidity
- pH 7.8 to 8.4
- Average size
- 40 cm (1′4″)
- Care level
- Moderate to easy Prefers sandbeds for burrowing
- Diet
- Carnivore Enjoys mysis and brine shrimp
- Social
- Harem Best kept in groups, sandbed dwellers
- Reefsafe
- Yes
- Aggression
- Peaceful
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderEelsAnguilliformes
- FamilyConger eelsCongridae
- GenusGarden EelHeteroconger
- SpeciesDusky Garden EelHeteroconger enigmaticus Castle & Randall, 1999
Care
Spotted Garden Eels require a specialized aquarium setup to thrive in captivity. They need a deep sand bed for burrowing and a strong current to deliver food to them. It's essential to provide a peaceful environment as they can be easily outcompeted for food and are prone to stress.
Feeding can be challenging since they prefer live or frozen zooplankton, and ensuring food reaches them without being taken by other tank inhabitants is crucial.
Reproduction
In the wild, Spotted Garden Eels reproduce by broadcasting their eggs and sperm into the water column where fertilization occurs. In the aquarium, breeding is rare, but providing the right conditions can increase the chances of observing this behavior.
Habitat
Spotted Garden Eels are native to the Indo-Pacific region, where they inhabit sandy slopes and lagoons at depths ranging from 7 to 45 meters. They are often found in large groups, with each individual maintaining its own burrow.
In the aquarium, replicating their natural environment is key to their well-being, with a focus on sand bed depth and water flow.