Liemi Halfbeak (Nomorhamphus liemi) — 3,5-7cm

Overview

Liemi Halfbeak (Nomorhamphus liemi) is a sleek, surface-dwelling livebearer from Sulawesi that thrives on small live foods and a tightly covered, peaceful aquarium. Native to freshwaters of Sulawesi, Indonesia, this species is prized for its distinctive appearance, fascinating breeding biology, and manageable size. Now available for sale UK from Tropical Fish Co, this unusual surface-dweller is ideal for the specialist community aquarium keeper seeking something different.

Appearance

The Liemi Halfbeak typically reaches around 7 cm in total length, making it a small to medium-sized halfbeak. The body is elongated and streamlined, with a shimmering silver or pale gold base color. The most distinctive feature is the elongated lower jaw, which gives the species its "halfbeak" common name. The fins are delicate and transparent, often showing subtle hints of color in well-conditioned males. Females are generally larger and more robust. Healthy specimens have bright, clear eyes and smooth, undamaged scales.

Natural Habitat

In the wild, Nomorhamphus liemi is native to freshwaters of Sulawesi, Indonesia, where it inhabits clear, well-oxygenated streams and rivers. These habitats are characterized by moderate flow, rocky or sandy substrates, and plenty of aquatic vegetation. The fish spend much of their time near the surface, feeding on small insects, larvae, and zooplankton. They are adapted to life at the air-water interface and use their elongated jaws to capture prey from the surface.

Aquarium Setup

A well-filtered aquarium of at least 60 litres is recommended for a small group of Liemi Halfbeaks. Use a fine gravel or sand substrate and incorporate smooth rocks, driftwood, and live plants to provide visual interest and hiding places. Ensure good filtration and gentle water movement to maintain high oxygen levels. A tightly fitting lid is essential, as halfbeaks are strong jumpers. Maintain stable, warm water and provide plenty of surface space and cover for feeding and breeding.

Feeding

The Liemi Halfbeak is a carnivore and thrives on a diet of small live and frozen foods. Offer mosquito larvae, daphnia, brine shrimp, and other tiny insects or crustaceans daily. Many individuals also accept quality floating micro-pellets, but live foods should form the majority of the diet. Feed once or twice daily, ensuring food is offered at the surface where the fish naturally feed.

Behaviour

This halfbeak is semi-aggressive and best kept in a small group in a suitably sized aquarium. Males can be territorial toward one another, especially during breeding, and may engage in displays and sparring. They spend much of their time near the surface, constantly on the move and feeding. Due to their semi-aggressive nature, they may become stressed or aggressive in cramped conditions or with inappropriate tankmates.

Tank Mates

The Liemi Halfbeak is suitable for a peaceful community aquarium with other small fish. Good tankmates include small peaceful fish that do not outcompete them at the surface, small rasboras, small tetras, peaceful dwarf catfish, and small snails (tiny shrimp may be at risk). Avoid large predatory fish, fin-nipping fish, aggressive or highly boisterous species, very large tankmates that may intimidate or eat them, and other top-dwelling surface competitors in cramped tanks.

Breeding

Breeding the Liemi Halfbeak is achievable with careful preparation. Males are livebearing and can be territorial. Breeding is possible in a well-maintained species tank with stable warm water, dense cover, and a ratio favoring females. Fry are relatively large for livebearers and can be raised on tiny live foods.

Why Buy from Tropical Fish Co

Tropical Fish Co is a leading UK aquatics specialist offering unusual and fascinating species like the Liemi Halfbeak direct to your door. Every fish is quarantined, inspected, and dispatched with expert care to ensure it arrives in peak condition. With decades of experience, transparent pricing, and exceptional customer support, we make it easy to add unique, specialist species to your collection. Order online today and enjoy fast, reliable delivery across the UK.