The Madagascar sleeper (Hypseleotris tohizonae) is a freshwater fish of the family Eleotridae that grows up to 10 cm.
Description
The Madagascar sleeper is a sleeper goby of the family Eleotridae, endemic to Madagascar. The species grows to about 10 cm and has a stocky body with a broad head. It inhabits freshwater brooks, rivers and pools, often among vegetation and on soft bottoms. As an ambush bottom predator it feeds on small invertebrates, insect larvae and small fishes. Unlike true gobies, sleepers have separate pelvic fins without a sucker. Owing to habitat loss and introduced species many Madagascan freshwater fishes are under pressure. Owing to its small size the species is harmless to humans.
Frequently asked questions
How do you recognise the Madagascar sleeper?
The Madagascar sleeper has an elongate, eel-like body, is mainly brown and shows a marbled pattern. Endemic Madagascan sleeper goby; ambush bottom hunter with separate pelvic fins.
Where does the Madagascar sleeper live?
The Madagascar sleeper lives in fresh water and is mostly found around sand or mud bottom. Endemic to Madagascar; freshwater streams, rivers and pools.
How big does the Madagascar sleeper get?
The Madagascar sleeper grows to a maximum of about 10 cm.
Is the Madagascar sleeper dangerous to humans?
No, the Madagascar sleeper is harmless to humans. None required: this species is harmless to humans.
Is the Madagascar sleeper edible?
The Madagascar sleeper is rarely eaten.

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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Hypseleotris
More from the family Eleotridae

Want the complete picture on the Madagascar sleeper?
Point your camera at the fish and Fin names the species in seconds. Free, and the Madagascar sleeper is one of 12,519 species in the app.