Nomorhamphus megarrhamphus

Scientific name: Nomorhamphus megarrhamphus Brembach, 1982

Nomorhamphus megarrhamphus is a freshwater fish of the family Hemiramphidae that grows to about 12 cm (4.7 in). It is easy to keep and aggressive and needs a tank of at least 75 L (20 US gal), water at 21–30°C (70–86°F) and a pH of 7.0–8.5. Native range: Asia, Lake Towuti, Indonesia.

Nomorhamphus megarrhamphus care at a glance

Care level: Easy
Temperament: Aggressive
Adult size: 12 cm (4.7 in)
Minimum tank: 75 L (20 US gal)
Temperature: 21–30°C (70–86°F)
pH: 7.0–8.5
Hardness: 6–18 dGH (107–321 ppm)
Diet: Carnivore. Accepts flakes, freeze-dried foods and live foods.

Species facts

Scientific name: Nomorhamphus megarrhamphus
Family: Hemiramphidae (Halfbeaks)
Order: Beloniformes (Needle fishes)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 12.0
Environment: Freshwater; brackish; pelagic
Climate: Tropical
Distribution: Asia: Lake Towuti, Indonesia.
Conservation status (IUCN): Lower Risk: near threatened (LR/nt)
Threat to humans: Harmless
Resilience: High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.

Last updated 28 September 2026