Latin Name: Trichogaster microlepis

Other Names: Moonbeam Gourami, Moonlight Gourami

How hard are they to keep? Moonlight Gourami’s are relatively easy to keep and are suitable for beginner fish keepers. They are generally hardy and adaptable to varying water conditions.

What is its maximum size? Moonlight Gourami’s can grow up to 4 to 5 inches in length, making them a medium-sized gourami species.

Where are they from? Moonlight Gourami’s are native to Southeast Asia, specifically found in the Mekong River basin and other freshwater systems in Thailand, Laos, and Cambodia.

How many can I keep? It is recommended to keep Moonlight Gourami’s in small groups, consisting of one male and multiple females. A larger aquarium or tank with enough hiding spots and territories should be provided to reduce aggression and promote their natural social behaviour.

How compatible are they with other fish? Moonlight Gourami’s are generally peaceful and can be kept with other peaceful community fish of similar size. However, they may show aggression towards other males of their own species or fish with long, flowing fins. Providing ample hiding spots and visual barriers can help minimize conflicts.

What are the ideal water conditions? Moonlight Gourami’s prefer slightly acidic to neutral water conditions. The ideal water temperature for them ranges from 75°F to 82°F (24°C to 28°C). They can tolerate a wide range of pH levels but do best in a range of 6.0 to 7.5. Adequate filtration and regular water changes are necessary to maintain water quality.

How do you tell the difference between male and female? Males typically display brighter and more vibrant colours, especially in their stripes and fins. They may also develop a more elongated dorsal fin and a pointed anal fin. Females tend to have rounder bodies and paler, less pronounced colours.

Fun Fact: Moonlight Gourami’s are known for their unique ability to produce sounds, often described as a “croaking” noise. They generate this sound by grinding their teeth together, producing a low-frequency audible clicking or croaking sound. This sound is believed to be a form of communication, often associated with courtship or territorial behaviour.