Furry Diary

Not furry, but we like them anyway.

Tiger Watchman Goby

Valenciennea wardii

Also called Ward's sleeper, Ward's sleeper goby, Ward's tiger, Tiger sleeper goby, Eleotris wardii (original name)

SpeciesShort profile

From Indo-Pacific: scattered localities across the Indian Ocean and western tropical Pacific; first described from Zanzibar12

At a glance the quick version

Length13 to 15 cm123
Sizesmall
Bold barred 'tiger' pattern with a dorsal eyespot
Sifts sand, keeping the bottom turned over
Often lives as a pair
13

Looks how to spot one

Elongated sand-sifting goby

A slim goby with a pale grey to whitish body crossed by three brown bars. A blue-white stripe runs below the eye, the first dorsal fin carries a dark eyespot, and the brown tail has a thin blue edge.13

Colourspale grey to whitebrown barsblue-white facial stripeblack eyespot on dorsal fin13

Personality what they are like

A peaceful fish toward most tank mates, though it can be territorial with its own kind. It spends its time near the sand bed and its burrow.31

Daily activity how busy a day looks

Busy near the bottom, taking mouthfuls of sand and sifting them for food through the gills.3

Grooming and care the hands-on bits

Needs a deep live sand bed to sift and burrow in. Rockwork should sit on the tank floor rather than on top of the sand, so digging does not shift it. Feed several small meals a day.3

Home where they are happiest

Minimum about 30 US gallons (114 L) with live sand. Saltwater at about 22 to 26 °C, pH 8.1 to 8.4, dKH 8 to 12, specific gravity 1.020 to 1.025. In the wild it lives over sandy and silty bottoms in lagoons, bays and inner reefs, from about 5 m down to 88 m, most often 5 to 20 m.312

Food basics what goes in the bowl

Carnivore. Offer brine shrimp, mysis shrimp, black worms and prepared meaty foods, fed often.3

Company who they like around

Found in pairs in the wild. Best kept alone or as a pair, since it can quarrel with others of its own species.13

The story where it all began

Edward Playfair described it in 1867 as Eleotris wardii, from fish collected near Zanzibar. The species name honours Swinburne Ward, the British Civil Commissioner for the Seychelles. It is now placed in the goby genus Valenciennea.2

Fun facts for the dinner table

  1. 1

    The species is named after Swinburne Ward, a British diplomat who served as Civil Commissioner of the Seychelles.2

  2. 2

    FishBase describes it as extremely rare in the wild, known only from widely scattered spots in the Indian Ocean and western Pacific.1

  3. 3

    It has been recorded from shallow lagoons down to about 88 m deep.1

  4. 4

    In the hobby it also goes by Ward's sleeper and tiger sleeper goby.3

Recognised by the official bits

IUCN Red List
Least Concern (assessed 2015)1

The care rhythm Furry Diary remembers it for you

A typical home-care rhythm for a Tiger Watchman Goby. It is our own starting plan, not a vet's advice, and you can change every line in the app.

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Where this comes from

Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at [email protected] and we will fix it.

  1. FishBase: Valenciennea wardii fishbase.seused for distribution, size, depth, habitat, colours, IUCN, pairing
  2. Wikipedia: Valenciennea wardii en.wikipedia.orgused for history, etymology, size, habitat
  3. LiveAquaria: Tiger Watchman Goby liveaquaria.comused for care, tank size, water parameters, diet, temperament

Checked 2026-09-30. Text is written in our own words from these sources.