Pygmy gouramis can reach a length of 4 centimetres. In color, they sparkle with red, green, and blue hues, and can produce an audible croaking noise using a specialised pectoral mechanism. In the right light, its eyes appear bright blue, and its arrowhead-shaped body and caudal fins reflect a rainbow of colors as it swims.
| Scientific name | Common Name | Size | Temperament |
| Trichopsis pumila | Pigmy gourami | 50mm | Peaceful |
| Water Temperature | Water pH | Tank size | Diet |
| 24-29oC | 6.8 - 7.2 | 40 liters | insectivorous |