Spotted garden eel
Small spotted eel living in sandy burrows in the Indo-Pacific.
The spotted garden eel is a small marine fish native to the Indo-Pacific. It lives in colonies on sandy seabeds, emerging from burrows to feed on drifting plankton. Its white body is marked with distinct black spots.
- Lives in colonies on sandy bottoms
- Emerges from burrows to catch plankton
- Has three distinctive large black spots
- Found from Red Sea to Polynesia
What it is
This small eel belongs to the family Congridae. It has a long, thin body with a circular cross-section, averaging 14 millimetres in diameter. The head is the same width as the body, with large eyes and a mouth positioned close together. The skin is white and covered in many tiny black dots. Three larger black spots mark specific areas: one near the gills and pectoral fins, one in the middle of the body, and one around the anus. Young eels have very thin, dark bodies.
Where it lives
These eels live in tropical and subtropical waters across the Indo-Pacific. Their range extends from the eastern coasts of Africa and the Red Sea eastward to Polynesia. They are found as far north as Japan and south to New Caledonia. They inhabit sandy seabeds at depths between 15 and 45 metres. The substrate must be exposed to water currents, which are essential for their feeding strategy.
How it lives
Individuals spend most of their time inside burrows they dig in the sand. Only about one third of the body emerges, with the mouth facing the current to catch food. They feed on plankton drifting in the water. Feeding rates rise as prey density increases. However, flow speed affects them differently; feeding drops when currents reach 0.25 metres per second. They rarely leave their burrows once established.
Breeding and life cycle
During the breeding season, eels adjust their positions. They move their burrows closer together until partners can make physical contact. After fertilisation, the eggs enter a planktonic phase. The young juveniles also drift in the open water column. They only settle into the sandy substrate and start digging burrows once they grow large enough.
Questions people ask about Spotted garden eel
Where does the spotted garden eel live?
It lives in tropical and subtropical Indo-Pacific waters. You can find it on sandy bottoms between 15 and 45 metres deep. It needs areas with water currents to help it feed.
What does the spotted garden eel eat?
It eats plankton that drifts in the ocean currents. The eel stays in its burrow and catches food particles with its mouth. Feeding is better when there is more prey in the water.
How big does this eel get?
It is a small fish that reaches a maximum length of 40 centimetres. Its body is very thin, with an average diameter of just 14 millimetres.
Good reading and sources
- Spotted garden eel on WikipediaEncyclopedia
- More photos on Wikimedia CommonsPhotos
- Wikidata recordOpen data
The facts on this page come from the Wikipedia article "Spotted garden eel", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.
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