Scientific Classification and Origin
The banded gourami (Trichogaster fasciata) is a labyrinth fish from the Osphronemidae family, first described in 1801 by Bloch and Schneider. European aquarists became acquainted with this species in 1897, and it reached Russia in 1904.
Taxonomy:
| Parameter | Value |
|---|---|
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Actinopterygii |
| Order | Perciformes |
| Family | Osphronemidae |
| Genus | Trichogaster |
| Species | Trichogaster fasciata |
Native to Pakistan, India, Nepal, Bangladesh, and upper Myanmar, the banded gourami inhabits the lower and middle reaches of the Brahmaputra and Ganges rivers. In nature, these fish populate rivers, lakes, ponds, canals, and river deltas.
Appearance and Sexual Differences
Adult banded gouramis reach 10-12 cm in length, typically growing to about 10 cm in aquarium conditions. The body is laterally compressed, relatively tall, and more elongated compared to other Trichogaster species.
The coloration is striking: alternating transverse bands of orange and blue adorn the blue body background. Unpaired fins display red speckled patterns with blue edging. Pelvic fins have evolved into thread-like feelers that serve as tactile organs.
Sexual dimorphism:
- Males are larger, more brightly colored, with pointed dorsal fins
- Females are smaller, displaying duller yellow-brown coloration with rounded dorsal fins
Fish reach sexual maturity at 6-8 months of age.
Banded Gourami Tank Setup
In my experience, keeping banded gouramis presents no particular difficulties even for beginning aquarists. A pair of adults requires at least 50-70 liters. For a group, you’ll need a tank of 150 liters or more, necessarily with a cover to prevent the surface air from cooling.
Aquarium Design
Substrate can be practically anything: coarse river sand, small pebbles, fine gravel, or decorative substrates. Diverse vegetation is desirable—I recommend creating small thickets along the sides and back glass. Excellent choices include hornwort, vallisneria, elodea, ferns, and cryptocorynes. Riccia or duckweed can float on the surface.
Bright lighting is preferable. I recommend providing several hours of natural sunlight daily, but avoid placing the aquarium on a windowsill due to temperature fluctuations.
Water Parameters for Banded Gourami
Optimal conditions:
| Parameter | Value |
|---|---|
| Temperature | 22-28°C (optimally 24-26°C) |
| Hardness (dH) | 5-20° (not critical) |
| pH | 6.0-7.5 |
| Tank volume | From 50 L for a pair |
Nitrate levels should remain below 50 mg/L, with recommended 20-30% monthly water changes.
Important consideration: the banded gourami is a labyrinth fish that uses atmospheric air for breathing. The aquarium must be covered with glass to prevent cold air from accumulating above the water surface—swallowing cold air can cause the fish to catch cold and become ill.
Compatibility with Other Fish
The banded gourami suits most peaceful aquarium communities but may display slight aggression during breeding periods. Males will fight among themselves in small tanks.
In my experience, good tankmates include:
- Schools of rasboras, danios, and small barbs like cherry barbs
- Guppies and other livebearers
- Loaches and smaller catfish
- Other peaceful gourami species (in spacious tanks)
Avoid housing with thick-lipped gouramis (Colisa labiosa), as these species may hybridize. I also don’t recommend keeping them with aggressive species like large cichlids.
Feeding
Banded gouramis accept various foods. They’re undemanding in diet, eating all types—dry, live (bloodworms, glassworms), and frozen (cyclops). I recommend prioritizing appropriately sized live foods: small artemia, daphnia, small bloodworms, chopped tubifex, and minced earthworms.
Avoid overfeeding, as gouramis are prone to obesity. A varied diet favorably affects the brightness of their coloration.
Breeding Banded Gouramis
Fry in the Colisa genus are very small, creating difficulties in selecting starter food. However, these fish spawn readily, and with a responsible approach to food selection, breeding them isn’t difficult.
Pre-Spawning Preparation
Exceptionally good conditions are necessary if you want offspring. Future breeders should receive exclusively live varied foods. Remember the harm of inbreeding—I recommend obtaining females from one source and males from another.
Interesting fact: banded gouramis have been imported to Russia repeatedly, but their magnificent coloration often fades after several generations in our aquariums. This may relate to insufficient nutrition, inbreeding, and possibly inadequate sunlight.
Spawning Tank
For breeding, you’ll need a spawning tank measuring 30×60 cm, filled with water to 10-15 cm depth. One corner should be densely planted, with a clump of riccia or duckweed floating on the surface.
To stimulate spawning, gradually raise the temperature by 2-3°C. Although literature indicates non-demanding water hardness requirements, I advise slightly softening the water by replacing approximately half the volume with cooled boiled water.
Spawning Process
When the male deems conditions suitable, he’ll begin building a bubble nest on the water surface among plant leaves. After nest completion, spawning occurs. The female releases 100 to 1000 colorless eggs.
Immediately after spawning, remove the female—the male assumes responsibility for the eggs. When fry begin swimming freely (approximately 5-6 days after spawning), remove the male as well.
Raising Fry
Plan spawning for spring when obtaining small food from natural water bodies won’t be problematic. During the first two weeks, you can use home-cultured infusoria, but it’s better to attempt collecting live dust, rotifers, and cyclops from a nearby water body. As fry grow, sort them by size and transition to larger food types.
Life expectancy of banded gouramis in aquarium conditions is approximately 5 years.
Potential Health Issues
The species is susceptible to velvet disease (Oodinium). At first signs of illness, I recommend checking water parameters and food quality. Detailed information about prevention and treatment can be found in articles about aquarium fish diseases.
A significant problem in the absence of regular spawning can be egg-binding in female gouramis. For prevention, I recommend creating conditions in the community tank for natural spawning.
Conclusion
The banded gourami is an interesting and beautiful fish that I’d describe as a “large dwarf gourami.” If you’re fortunate enough to acquire these beauties, I think you won’t be disappointed. Their behavior provides hours of observation, while their bright coloration combined with impressive size outshines many species that appeared in hobbyist aquariums much later. Like its relative the paradise fish, this labyrinth fish deserves a place in every collector’s tank who appreciates classic aquarium species.
Article updated: 2026-08-27
