Snakeskin gourami

What it is

This elongated fish displays moderate body compression with a small dorsal fin. Its anal fin stretches nearly the full length of the torso, while pelvic fins appear as long threads. Males feature pointed dorsal fins and orange-red pelvic tips, contrasting with duller females. The back shows olive tones, flanks exhibit greenish-gray hues with silver iridescence, and underparts remain white. A distinct black band runs from snout through the eye to the tail base. Juveniles show strong zig-zag lines. Adults reach up to twenty-five centimetres, though fifteen centimetres is more typical.

Where it lives

Native populations inhabit the Mekong and Chao Phraya river basins across Thailand, Vietnam, Laos, and Cambodia. Introduced ranges include the Philippines, Malaysia, Indonesia, Singapore, Papua New Guinea, Sri Lanka, and New Caledonia. The species thrives in shallow, sluggish waters rich in vegetation. It occupies rice paddies, ponds, swamps, and flooded forests. As floodwaters recede, individuals gradually return to main river channels.

How it lives

These fish feed on aquatic insects and small living organisms within their habitat. Like other labyrinth fish, they possess a specialized organ allowing direct air breathing alongside gill respiration. They are omnivorous, accepting live worms, larvae, crustaceans, flakes, pellets, and chopped vegetables. In captivity, they occupy bottom and middle tank levels. They are peaceful community fish suitable for mixing with barbs, tetras, and loaches.

Breeding and life cycle

Breeding begins when fish reach thirteen centimetres in length. They are highly prolific, yielding up to five thousand fry per spawning event. Males remain relatively non-aggressive during this period, unlike many related species. Parents do not consume their offspring. Fry require progressively larger flake foods, occasionally supplemented with brine shrimp. During courtship, males produce vocalizations described as croaking or cracking sounds to establish territory.

Fish and people

In Thailand, this species ranks among the top five aquacultured freshwater fish. It is farmed extensively in central provinces like Samut Prakan and Suphan Buri. The flesh is considered sweet and high quality, suitable for frying, grilling, or soups like tom yam. Dried specimens trade well in areas lacking live supply. While less common in the aquarium trade than other gouramis, it remains popular for beginners due to its hardiness and peaceable nature.

Status and threats

No specific conservation threats are detailed in the provided material. However, cultured populations face various diseases including streptococcosis, chlamydia-like infections, parasitic nodules causing lumpy skin, and viral necrosis. These pathogens cause significant mortality in intensive farming settings. Despite these health challenges in aquaculture, the species remains widespread in its native range and introduced regions.

Relatives and look-alikes

Prior to taxonomic revisions merging Belontidae into Osphronemidae, this species was regarded as the largest member of its former family. It remains the largest species within its genus and subfamily. It shares its habitat and biological traits with other labyrinth fishes, such as Trichogaster trichopterus, which can contract similar viruses in shared pond environments.

Questions people ask about Snakeskin gourami

Good reading and sources

• Snakeskin gourami on WikipediaEncyclopedia
• More photos on Wikimedia CommonsPhotos
• Wikidata recordOpen data