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Scleropages inscriptus

Roberts, 2012

Last revised 2026Edit this page

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Wild-collected specimen from the aquarium trade.
Wild-collected specimen from the aquarium trade.Kamphol Udomritthiruj

Quick factsEdit

Max size
600mm SL24in SL
Aquarium size
not recorded
Temp
not recorded
pH
not recorded
Hardness
not recorded

Difficulty3 of 8 measures

Difficult

Rated difficult because it needs a tank at least 2 m long.

How the rating is worked out

Space
very large tank
Water
unknown
Temp
unknown
Diet
unknown
Temperament
unknown
Social
fine alone
Compatibility
choose tankmates carefully

Other demands

Each of these can raise the rating on its own, whatever the measures above say.

Hardiness
unknown
  • Needs a tank at least 2 m long

Scleropages inscriptus is an osteoglossid said to come from the Tenasserim river basin in Tananthayi Region, southern Myanmar. Its distribution is unclear, and the type specimens were obtained dead from an aquarium fish vendor. Distinctive angulated linear markings on the head and flanks separate it from other members of the genus. The largest of the type series measured 385 mm, but it can apparently attain about 600 mm.

Etymology

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Scleropages: from the Ancient Greek σκληρός (skleros), meaning 'hard', and pages (Latin derivation?), meaning 'leaves', perhaps in reference to the large body scales.

inscriptus: from the Latin inscriptus, meaning 'inscribed', in reference to the distinctive markings on the scales and facial bones.

Distribution

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This species' distribution is unclear although individuals from the aquarium trade are said to have been collected in the Tenasserim river basin in Tanintharyi Region, southern Myanmar.

Type locality is 'supposedly from Tanintharyi district, Tanintharyi River basin, obtained dead from aquarium fish vendor at Meik'.

Aquarium size

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Standard length
600mm SL24in SL
Aquarium base
not recorded

Suitable only for public installations or the very largest private aquaria.

Probably an obligate predator feeding on smaller fishes, crustaceans and other invertebrates in nature but should adapt well to dead alternatives in captivity.

Young fish can be offered chironomid larvae (bloodworm), small earthworms, chopped prawn and suchlike while adults will accept strips of fish flesh, whole prawns/shrimp, mussels, live river shrimp, larger earthworms, etc., as well as dried pellets although the latter should not form the staple diet.

This species should not be fed mammalian or avian meat such as beef heart or chicken since some of the lipids contained in these cannot be properly metabolised by the fish and may cause excess fat deposits and even organ degeneration.

Similarly there is no benefit in the use of 'feeder' fish such as livebearers or small goldfish which carry with them the risk of parasite or disease introduction and at any rate tend not have a high nutritional value unless properly conditioned beforehand.

These recommendations come from this profile’s own figures. They contain affiliate links, so we may earn a commission.

Notes

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This species differs from other members of the genus in possessing distinctive angulated linear markings on the dermal bones of the circumorbital and opercular series, on the sides of the head and flanks.

References

  1. Roberts, T. R. (2012). Scleropages inscriptus, a new fish species from the Tananthayi or Tenasserim River basin, Malay Peninsula of Myanmar (Osteoglossidae: Osteoglossiformes). Aqua 18(2), 113-118
  2. Kottelat, M. (2013). The fishes of the inland waters of southeast Asia: a catalogue and core bibliography of the fishes known to occur in freshwaters, mangroves and estuaries. The Raffles Bulletin of Zoology Supplement 27, 1-663