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Edit Butis butis

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Name

Scientific name

Butis butis

Described by

Authority Hamilton, Year 1822, Bracketed

Family

Butidae

Common names

Crazy Fish

Photograph credits

All 2 credited

Summary

The crazy fish, Butis butis, is a flathead gudgeon of coastal and brackish waters across the Indo-Pacific, from eastern Africa to Fiji. The…

Size and aquarium

Maximum size

120mm, standard length

Aquarium size

Minimum length 75 cm, Minimum depth 30 cm

Water

Water conditions

Temperature 22–27°C, pH 7–8.5

Hardness

10–20dGH

Conductivity

Not recorded

Behaviour

Temperament

Territorial

Social needs

Solitary or specimen

Community suitability

Not for a community

Where it lives

Countries, regions, rivers and lakes

Australia, Bangladesh, Brunei, Cambodia, China, Fiji, Hong Kong, India, Japan, Kenya, Macau, Madagascar, Malaysia, Mauritius, Mozambique, Myanmar, New Caledonia, Palau, Papua New Guinea, Philippines, Seychelles, Singapore, Somalia, Sri Lanka, Taiwan, Tanzania, Thailand, Vietnam, Mascarene Islands, Mekong

Writing

Etymology

Not written yet

Distribution

Type locality is 'Ganges River, below Calcutta, India', but this species is very widely-distributed throughout much of the Indo-Pacific with records existing f…

Habitat

Generally inhabits coastal, brackish environments such as estuaries, lagoons, and mangroves but also known to penetrate tidal freshwater rivers to an extent. I…

Aquarium size

A single specimen can be maintained in an aquarium with base dimensions of 75 ∗ 30 cm or equivalent but larger quarters would be required by a group or if you …

Maintenance

Best-maintained in brackish water although the precise specific gravity is unimportant provided it does not exceed that of seawater (1.025). Try to find out th…

Water conditions

Not written yet

Where does this come from?

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Diet

This species is an ambush predator feeing mostly on smaller fishes, worms, and crustaceans in nature. In the aquarium it readily accept prepared alternatives s…

Behaviour and compatibility

Territorial and may react aggressively towards related or similarly-shaped species, while smaller fishes and invertebrates will be preyed upon. The most suitab…

Sexual dimorphism

Unknown.

Reproduction

Not thought to have occurred in aquaria.

Notes

B. butis is the most commonly-traded member of the genus and is known by a number of vernacular names with other English examples including 'crocodile fish', '…

References

References

8 on this profile