Madura Pipefish

Hippichthys heptagonus
Madura Pipefish - Marinewise © 2025 MarineWise

Quick Facts

Scientific name Hippichthys heptagonus
Other names Freshwater Pipefish, Belly Pipefish, Mandura Pipefish, Reticulated Freshwater Pipefish, Short Snout Pipefish, Small Headed Pipefish
Size Up to 15 cm (5.9 in)
Weight A few grams

Distribution

Habitat & AU Distribution Brackish water estuaries & mangroves to freshwater creeks & rivers
Depth Range Up to 10 m (33 ft)
Madura Pipefish Distribution

Interesting Info

  • The Madura Pipefish is a slender, elongated fish in the Syngnathidae family, which also includes seahorses and seadragons.
  • They are found throughout the Indo-Pacific, including northern Australia (Queensland, Northern Territory, Western Australia).
  • Its scientific name heptagonus means “seven-angled,” referring to the seven-sided cross-section of its body, a unique feature that sets it apart from many other pipefish.
  • Their colouration varies from brown to olive-grey, often with faint banding or mottling, making them resemble twigs or seagrass stems.
  • Like all pipefish, they feed by sucking up tiny prey — mainly plankton, crustaceans, and insect larvae — with their long, straw-like snout.
  • They prefer estuaries, mangrove creeks, seagrass beds, and sheltered coastal lagoons, where their camouflage helps them avoid predators.
  • Breeding is unique: females transfer eggs to the male’s brood pouch, located under his tail. The male incubates the eggs for several weeks, supplying oxygen and nutrients until the tiny pipefish hatch and swim away.
  • They can reproduce multiple times during the warmer months, allowing populations to bounce back quickly in good conditions.
  • Lifespan is estimated at 1–3 years, typical for small pipefish, though some may live longer in stable habitats.
Species Interaction

Conservation, Aquariums, Diving & Snorkelling

Madura Pipefish are occasionally kept in specialist aquariums, though they are challenging to maintain. Snorkellers and divers in northern Australia sometimes encounter them among mangroves and seagrass beds, but spotting one requires a sharp eye. Conservation efforts that protect mangroves and seagrass directly benefit this species, as they rely on these environments throughout their life cycle.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Syngnathiformes

Family: Syngnathidae

Genus: Hippichthys

Species: Hippichthys heptagonus

Conservation Status

The conservation status of the Madura Pipefish is currently listed as “Least Concern” by the International Union for Conservation of Nature (IUCN). This means that the species is not currently facing any major threats and is considered to have a stable population trend.

Madura Pipefish
As Aquarium Fish

Care Level: Difficult

Temperament: Peaceful

Diet: Carnivore

Reef Compatible: Yes

Minimum Tank Size: 60 gallons

Recreational Viewing
- Snorkeling & Scuba

Finding: Easy

Temperament: Shy

Location: Seagrass Beds

Danger: None