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Toxotes chatareus


Toxotes chatareus
Marble Archer Fish
七星高射炮
Toxotes chatareus, sometimes known by the common names seven-spot archerfish or largescale archerfish, is a species of perciform fish in the archerfish genus Toxotes. They are usually no larger than 20 centimetres (7.9 in) but may grow up to 40 centimetres (16 in). Unlike most archerfish, T. chatareus are sooty rather than silvery in colour. They are omnivorous, feeding on insects, fish, and vegetative matter at the surface of the water. Breeding occurs in the wet season, and 20,000 to 150,000 eggs may be laid at one time.
T. chatareus are distributed throughout southeast Asia and the Indo-Pacific and Australia. They may live in brackish or fresh water, inhabiting mangrove swamps and estuaries as well as further upstream in slow-moving rivers. While occasionally caught and eaten, T. chatareus are more commonly kept in the aquarium. They may be sold with other Toxotidae under the collective label "archerfish". Caring for T. chatareus in aquaria is somewhat difficult as they need live food given at the surface, rather than flake food.
T. chatareus can be distinguished by their sooty colour, as opposed to the typical silver of most other archerfish. They have five dorsal spines, whereas T. jaculatrix have four. The markings on their flanks are also alternating long and short spots rather than bands. T. chatareus also have six or seven markings on its sides, whilst banded archerfish have four to five. T. chatareus has 29–30 lateral line scales, compared to 33–35 in T. jaculatrix. T. chatareus are also less common upstream than T. microlepis.
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