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Encyclopedia / Gouramis & Bettas / Moonlight gourami
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Variations

1 kinds · tap one for a closer look

Moonlight gourami

Trichopodus microlepis · Moonlight, Moonbeam gourami, Silver gourami

Peaceful but gets big and may eat tiny fish.

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· real AED shop prices, never conversions
15 cmBody length, without tail ✓
25–30 °CTemperature ✓
6–7.5pH ✓
81 LSmallest tank ✓
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Tank mates
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✕Not recommended
  • They need different temperatures (25–30 °C vs 16–24 °C). No setting suits both.
✕Not recommended
  • They need different temperatures (25–30 °C vs 18–24 °C). No setting suits both.
✕Not recommended
  • White cloud mountain minnow needs cool water and makes a lot of waste, while Moonlight gourami is tropical.
  • They need different temperatures (25–30 °C vs 14–22 °C). No setting suits both.
!With conditions
  • Only a narrow temperature range suits both: exactly 25 °C.
!With conditions
  • Only a narrow temperature range suits both: 25–26 °C.
✓Compatible
✓Compatible
✓Compatible
✓Compatible
✓Compatible

246 species in our list are a good match.

Facts checked against sources on 16 Oct 2026. ✓ means a source backs it; ? means no reliable source yet. See sources

Care and water

Hardness ✓2–25 dGH
Group size ?Can live alone
Temperament ✓Peaceful
Swims at ?Top
Care level ✓Easy
Diet Omnivore
Lifespan ?Unknown
Size in shops 4–7 cm
Growth Medium

Behavior

Peaceful but gets big and may eat tiny fish. Does best with similar-sized, non-nippy tankmates; avoid fin-nippers as it uses its long feelers to explore.

Food

Flakes, pellets, frozen bloodworms and blanched vegetables; takes small insects from the surface.

Tap a food to see what it is.

Male or female

Males have orange or red pelvic fins (the long feelers); females have yellow ones.

Health

Common problems. Tap one to see the signs. This is a guide, not a diagnosis.

Breeding

Bubble-nester · Moderate

Bubblenester that is not easy to breed. The male builds a loose bubble nest among surface plants; remove the female after spawning and the male once the fry swim freely.

Pairing

Buy 6 juveniles and let a pair form, or add a ripe female to a conditioned male.

Setup

200 L or larger planted tank with floating plants, water level lowered to 20 cm, warm and still, no strong filter flow.

What starts it

Raise the temperature to 28 C, feed live and frozen foods heavily, and do a warm water change.

Eggs

500-1,000 eggs (up to 2,000 reported); they hatch in 1-2 days and the fry swim freely 2 days later.

Raising the fry

Infusoria then newly hatched brine shrimp; fry need warm, still, humid air above the water as the labyrinth organ develops. Remove the female after spawning and the male once fry swim.

Common mistakes
  • Strong filter flow breaking the nest
  • Cool air above the water
  • Keeping the male with the female after spawning
Full breeding guide, day-by-day plan and simulator →

Where it lives in the wild

Mekong RiverThai rice paddiesLoading the map…
Native range (rough area)Centre of the rangePlaces on the World Map
RegionMainland Southeast Asia – Thailand, Cambodia & Vietnam
Rivers and lakesMekong and Chao Phraya basins
HabitatSluggish, densely vegetated swamps, ponds and floodplains
Native rangeAbout 700 km across
Open on the World Map

The story of the moonlight gourami

A plain silvery gourami from the Mekong and Chao Phraya basins with unusually long pelvic feelers. It lives in densely vegetated ponds and swamps and is used as a food fish in its native countries; most aquarium fish are farm-bred.

German-born British ichthyologist Albert Günther described this gourami in 1861. Its silvery, moonlit sheen has made it a popular peaceful gourami for larger community tanks.

First described by Albert Günther in 1861. Named for 'Microlepis' means small scales.

  • Its tiny scales give its body a smooth, pearly look.
  • Males build bubble nests, often anchored among plants.
  • Like all labyrinth fish, it gulps air from the surface.

Sources

16 facts checked with sources

  • Scientific name

    Older books and shops use Trichogaster microlepis (pre-2009 combination); Deschauenseeia chryseus and Trichopus parvipinnis are synonyms.

    Eschmeyer's Catalog of Fishes: genus Trichopodus · FishBase: Trichopodus microlepis summary
  • Familycorrected

    Legacy has no family field. FishBase places the order as Anabantiformes.

    FishBase: Trichopodus microlepis summary
  • Size

    Seriously Fish gives 15 cm SL (standard length); FishBase 14 cm TL. Larger well-sourced figure (15 cm SL) used per the size rule.

    Seriously Fish: Trichopodus microlepis · FishBase: Trichopodus microlepis summary
  • Temperaturecorrected

    Both sources run warmer than legacy 24-28.

    Seriously Fish: Trichopodus microlepis · FishBase: Trichopodus microlepis summary
  • pHSeriously Fish: Trichopodus microlepis · FishBase: Trichopodus microlepis summary
  • Hardnesscorrected

    Legacy has no hardness; both sources agree.

    Seriously Fish: Trichopodus microlepis · FishBase: Trichopodus microlepis summary
  • Smallest tankcorrected

    90 x 30 cm base x 30 cm height = 81 L (Seriously Fish states ~81 litres). This is Seriously Fish's minimum; legacy 200 L is a generous figure for a 15 cm fish but is not what the source gives.

    Seriously Fish: Trichopodus microlepis
  • Group size

    No source gives a group size.

    Seriously Fish: Trichopodus microlepis
  • Temperament

    A skittish community fish; males may be territorial with other males and gouramis, and it will eat very small fish.

    Seriously Fish: Trichopodus microlepis
  • Swimming level

    No source names a swimming level; FishBase lists it as demersal, which conflicts with legacy "top".

    FishBase: Trichopodus microlepis summary
  • Care level

    Seriously Fish's difficulty panel rates it Easy.

    Seriously Fish: Trichopodus microlepis
  • Where it livescorrected

    Legacy has no range field. Seriously Fish says wild fish are rare in the hobby; most are mass-produced in the Far East and Eastern Europe.

    FishBase: Trichopodus microlepis summary · Seriously Fish: Trichopodus microlepis
  • Male or femalecorrected

    The pelvic-fin colour cue is supported; the legacy "longer dorsal fin" claim was not found in the sources.

    Seriously Fish: Trichopodus microlepis
  • Breeding

    Seriously Fish recommends a water level of 6-8 inches and slowly raising to 85 F (about 29 C) for spawning.

    Seriously Fish: Trichopodus microlepis · FishBase: Trichopodus microlepis summary
  • Eggs and young

    Legacy 500-1,000 eggs and 24-36 h hatch agree.

    FishBase: Trichopodus microlepis summary · Seriously Fish: Trichopodus microlepis
  • Storycorrected

    "Glows pale blue" and "one of the calmest large gouramis" are not stated in sources; range was given as the Mekong only (also Chao Phraya).

    Seriously Fish: Trichopodus microlepis