Max Size: 15cm

Opaline Gourami (Trichopodus trichopterus)

Opaline Gourami is a peaceful, calm, attention-seeking and interesting fish with unique colours.

It is not suitable for housing with small fish because they are likely to eat them. Males can be somewhat aggressive towards one another, so it is essential to keep them in a group to spread the aggression.

This species has a grey-silver body elongated body, which is flattened laterally, the pectoral fins are large and transparent, and the anal fin extends from the chest to the base of the tail. The body displays dark patches of different size and irregular shapes.

The Opaline Gourami is a colour variation of the Blue Gourami.

This Species is a labyrinth fish that has a respiratory organ, allowing them to breathe air.

Quick Facts
Scientific NameTrichopodus trichopterus
Year Described1770
Other NamesMarbled gourami
OriginsCambodia, China, Indonesia, Laos, Malaysia, Myanmar, Thailand, Vietnam
Aquarium LevelMiddle
DifficultyBeginner - Intermediate
Best kept asGroups 5+
Lifespan4 - 8 years
Water Parameters
Water TypeFreshwater
PH6.5 - 7.5
GH5 - 35
75 - 82℉
23.9 - 27.8℃

Photos of the Opaline Gourami

Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami
Opaline Gourami

Natural Habitat

The Opaline Gourami is found in the River Mekong basin in southern China, Laos, Vietnam, Thailand, Cambodia, Myanmar and Malaysia in Southeast Asia. You can also find them in Java, Sumatra and Kalimantan in Indonesia.

This species inhabits Shallow water that is still and sluggish such as Swamps, marshes, and peatlands. They also inhabit flowing streams and canals as long as there is plenty of aquatic vegetation.

Upon flood season around the lower and middle Mekong, they will migrate from the main streams to areas of flooded plains and forests, and then when the dry season comes they will return to their natural habitat.

What to feed the Opaline Gourami

The Opaline Gourami will each pretty much anything you feed them.

They should have quality pellet or flake food as the staple of their diet but to maintain the right balance, you should feed them with live or frozen foods like brine shrimp, bloodworm, mosquito larvae or white worms.

Blanched Vegetables such as lettuce or peas can also be offered, and they do enjoy grazing on fine-leaved plants.

How to sex the Opaline Gourami

The best way to distinguish between the female and the male is the fins.

In the male, the dorsal and anal fin is long and pointed, while the females are shorter and rounded.

How to breed the Opaline Gourami

Opaline Gouramis will become sexually mature by around 8-12 months, and they can be bred successfully in the aquarium. The males construct a bubble nest at the surface of the water and begin swimming back and forth to entice the female.

When the female is ready to spawn, she will swim beneath the nest, and the male will then gently embrace her with his body, helping with the spawning of the eggs. He will then fertilise them immediately and will gently collect them with his mouth and place them in the nest.

As soon as the eggs have been fertilised, the male usually gathers them all up and places them into his bubble nest.

Once the female has finished releasing her eggs, she can lay anything up to 800 of them; she must be removed from the tank as the male will continually harass her, causing her unnecessary stress in the closed environment of an aquarium.

The male will look after and guard the eggs until they hatch and the fry is free-swimming, after this, the male should be removed to avoid any accidental deaths when he tries to return them to the nest.

Other Gouramis of interest

Banded Gourami(Trichogaster fasciata)
Chocolate Gourami(Sphaerichthys osphromenoides)
Congo Ctenopoma(Ctenopoma congicum)
Dwarf Gourami(Trichogaster lalius)
Frail Gourami(Ctenops nobilis)
Giant Chocolate Gourami(Sphaerichthys acrostoma)
View all Gouramis
Date Added: 29/08/2020 - Updated: 15/02/2022 14:06:32