Overview
The Dwarf Gourami (Trichogaster lalius) is a freshwater fish belonging to the family Osphronemidae. It thrives at temperatures of 25–28 °C with a pH of 6.0–7.5, and requires a minimum tank volume of 75 litres. Known for its peaceful community fish, it is considered a beginner-level species. Males may spar with rival males; keep only one male unless the tank is large. Water changes of 25–30 % weekly, stable parameters, and appropriate tank mates are key to long-term success with this species.
Scientific Classification
| Rank | Classification |
|---|---|
| Family | Osphronemidae |
| Genus | Trichogaster |
| Species | Trichogaster lalius |
| Water type | freshwater |
| Native range | Macrocuenca Magdalena-Cauca | Macrocuenca Pacifico | |
Natural Habitat
Trichogaster lalius originates from Macrocuenca Magdalena-Cauca | Macrocuenca Pacifico |. It inhabits freshwater environments and is adapted to the water conditions found in its native range.
Appearance
Adults reach 5–7 cm in length. The body is freshwater and the species displays characteristic coloration suited to its environment.
Behavior
This species is described as a peaceful community fish. It does not school and can be kept individually or in small numbers. Activity level is moderate. Males may spar with rival males; keep only one male unless the tank is large.
| Trait | Value |
|---|---|
| Temperament | peaceful community fish |
| Schooling | No |
| Activity level | moderate |
Water Requirements
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 25–28°C (77–82°F) | Use a reliable adjustable heater |
| pH | 6–7.5 | Avoid sudden swings |
| Hardness (GH) | 4–15 dGH dGH | Soft to moderately hard |
| Ammonia | 0 ppm | Any detectable ammonia signals a problem |
| Nitrite | 0 ppm | Toxic even at low levels |
| Nitrate | <20 ppm | Manage through regular partial water changes |
| Min. tank | 75L (20 gal) | Larger tanks are easier to keep stable |
Interesting Facts
- Can breathe atmospheric air using a labyrinth organ — an adaptation to oxygen-poor waters.
- The 'Flame' and 'Powder Blue' colour forms are captive-bred morphs of the wild red-blue striped fish.
- Female Dwarf Gouramis are silver-grey and rarely sold; only the vivid males are usually available.
📋 Full Care Guide
Ready to set up a tank for your Dwarf Gourami? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.
Read Dwarf Gourami Care Guide →Related Species
Related Species & Guides
This species profile was reviewed for biological accuracy and practical aquarium care guidance. For suspected illness or disease, test your water parameters first and consult an aquatic veterinarian if symptoms persist.