Celebes Halfbeak (Nomorhamphus celebensis) — 3,5-5cm

Overview

Celebes Halfbeak (Nomorhamphus celebensis), also known as the Poso Halfbeak, is a sleek, surface-dwelling Indonesian halfbeak with unique livebearing behavior and elegant, peaceful schooling habits. Endemic to Lake Poso and its tributaries in Sulawesi, Indonesia, this species is prized for its distinctive appearance, fascinating 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.

Appearance

The Celebes Halfbeak typically reaches around 5 cm in total length, making it a small 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 celebensis is endemic to Lake Poso and its tributaries in Sulawesi, Indonesia, where it inhabits clear, well-oxygenated waters. 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 75 litres is recommended for a small group of Celebes 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 for feeding and breeding.

Feeding

The Celebes Halfbeak is an insectivore and thrives on a diet of small live and frozen foods. Offer daphnia, brine shrimp, mosquito larvae, and other insect-based foods daily, supplemented with high-quality micro pellets or flakes if accepted. Feed once or twice daily, ensuring food is offered at the surface where the fish naturally feed.

Behaviour

This halfbeak is peaceful and best kept in a small group in a suitably sized aquarium. They spend much of their time near the surface, constantly on the move and feeding. Males may engage in mild displays, but serious aggression is rare. Due to their specialized feeding behavior and delicate nature, they may be stressed by fast-moving or boisterous tankmates.

Tank Mates

The Celebes Halfbeak is suitable for a peaceful community aquarium with other small fish. Good tankmates include small peaceful midwater fish, non-aggressive species that will not outcompete them for food, and peaceful dwarf fish. Small shrimp may be at risk if very small. Avoid large predatory fish, aggressive or fin-nipping fish, fast boisterous species, and large shrimp-eating fish.

Breeding

Breeding the Celebes Halfbeak is achievable with careful preparation. This is a viviparous species, with males using a modified anal fin for internal fertilization and females giving birth to live young. Provide excellent water quality, dense planting, and a well-fed breeding group. Fry are relatively large 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 Celebes 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.