Croaking Gourami
Croaking Gourami (Trichopsis vittata) is a fascinating and characterful small gourami best known for the audible croaking sound it produces — a sound created by the modified pectoral fin muscles and clearly audible during territorial disputes and courtship. The pale body with horizontal red-brown stripes and iridescent blue-green fin highlights is subtly beautiful, and the fish's personality more than compensates for its understated coloration.
Feeding & Care Tip: Sera Vipan Tropical Flakes and Hikari Micro Pellets make excellent daily staples. Supplement 2–3× per week with Hikari Frozen or Freeze-Dried Baby Brine Shrimp or Hikari Vibra Bites. Feed small amounts 2–3 times daily in a calm environment — a shy feeder.
Native to slow-moving, heavily vegetated rivers, streams, and rice paddies across Southeast Asia — Thailand, Vietnam, Malaysia, Indonesia, and surrounding areas. Inhabits very shallow, heavily planted water with gentle flow. Dense planting and subdued lighting produce the most confident and visible fish.
Keep in pairs or small groups. Males display and 'croak' at each other during territorial interactions — an extraordinary behavior in a fish this size. The croaking sound is most frequently heard during spawning and rival encounters. Peaceful with other community fish; avoid boisterous or nippy species.
Males build floating bubble nests at the surface among plants or floating vegetation when in breeding condition — a fascinating and distinctive behavior. The male courts the female with elaborate fin displays, and the pair spawns beneath the nest. The male guards eggs and wriggling larvae until the fry become free-swimming. Remove the female after spawning to protect her from the male's nest-guarding aggression. All gouramis possess a labyrinth organ — a specialized breathing structure above the gills that allows them to breathe atmospheric air directly from the surface. This adaptation evolved for life in oxygen-poor waters and means gouramis can survive in conditions that would stress most other fish. Always ensure unobstructed surface access — a tight-fitting lid with a small gap, or a covered aquarium, prevents the fish from breathing cold air which can cause respiratory issues.
Care & Ideal Parameters
| Difficulty | Easy |
| Temperament | Peaceful — community |
| Typical Adult Size | 2.75 inches (7 cm) |
| Min. Group Size | Pair or small group |
| Ideal Temp | 72–82°F (22–28°C) |
| Ideal pH | 6.0–7.5 |
| Ideal GH | 3–15 dGH |
| Ideal KH | 1–8 dKH |
| Staple Food | Sera Vipan Tropical Flakes; Hikari Micro Pellets |
| Treat / Supplement | Hikari Frozen or Freeze-Dried Baby Brine Shrimp; Hikari Frozen Daphnia; Hikari Vibra Bites |
| Origin | Southeast Asia — Thailand, Vietnam, Malaysia, Indonesia |
| Notes | Produces audible croaking sound — unique among aquarium fish of this size. Sound most frequent during spawning and territorial displays. Subtle striped coloration with iridescent fin highlights. Bubble nest builder. |