Photo: Marcus Elieser Bloch (1723–1799) (Public domain) — via Wikimedia Commons
Banded Gourami (Trichogaster fasciata)
A robust, striking gourami with bold blue and orange banding — bigger and hardier than its dwarf cousins.
Will it live with a Banded Gourami?
We compare each fish against your banded gourami on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.
- Adolf's Cory✅ CompatiblePeaceful · 5.5 cm · Medium care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Adolf's Cory in a shoal of 6+ or it gets stressed and nippy.
- Agassiz's Corydoras✅ CompatiblePeaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Agassiz's Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Axelrod's Cory✅ CompatiblePeaceful · 5 cm · Easy care · 23–28 °C (73–82 °F)
- Compatible on the things that matter: shared water near 23–28 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Axelrod's Cory in a shoal of 6+ or it gets stressed and nippy.
- Bandit Corydoras✅ CompatiblePeaceful · 5 cm · Easy care · 22–27 °C (72–81 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Bandit Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Banjo Catfish✅ CompatiblePeaceful · 15 cm · Medium care · 20–26 °C (68–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Black Kuhli Loach✅ CompatiblePeaceful · 8 cm · Easy care · 23–28 °C (73–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
- Blood Red Tiger Pleco✅ CompatiblePeaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Bolivian Ram✅ CompatiblePeaceful · 8 cm · Medium care · 24–28 °C (75–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
- Burmese Loach✅ CompatiblePeaceful · 9 cm · Easy care · 22–28 °C (72–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Corydoras Catfish✅ CompatiblePeaceful · 6.5 cm · Easy care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Corydoras Catfish in a shoal of 6+ or it gets stressed and nippy.
- Duplicareus Corydoras✅ CompatiblePeaceful · 5.5 cm · Medium care · 23–27 °C (73–81 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Duplicareus Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Elegant Cory✅ CompatiblePeaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 22–28 °C — no size, zone or temperament conflicts.
- Keep Elegant Cory in a shoal of 6+ or it gets stressed and nippy.
- False Julii Corydoras✅ CompatiblePeaceful · 6 cm · Easy care · 22–26 °C (72–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
- Keep False Julii Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Giant Kuhli Loach✅ CompatiblePeaceful · 12 cm · Easy care · 24–30 °C (75–86 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- Kuhli Loach✅ CompatiblePeaceful · 10 cm · Easy care · 24–30 °C (75–86 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- Leopard Frog Pleco✅ CompatiblePeaceful · 9 cm · Medium care · 25–30 °C (77–86 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 25–28 °C — no size, zone or temperament conflicts.
- Narcissus II Cory✅ CompatiblePeaceful · 5.5 cm · Medium care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Narcissus II Cory in a shoal of 6+ or it gets stressed and nippy.
- Peppered Corydoras✅ CompatiblePeaceful · 7 cm · Easy care · 18–26 °C (64–79 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Peppered Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Rust Corydoras✅ CompatiblePeaceful · 5.5 cm · Easy care · 23–27 °C (73–81 °F)
- Semi-aggressive + Peaceful, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
- Keep Rust Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Slate Corydoras✅ CompatiblePeaceful · 6 cm · Medium care · 23–28 °C (73–82 °F)
- Compatible on the things that matter: shared water near 23–28 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Slate Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Spotfin Corydoras✅ CompatiblePeaceful · 6.5 cm · Easy care · 22–26 °C (72–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
- Keep Spotfin Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Spotted Corydoras✅ CompatiblePeaceful · 7 cm · Easy care · 22–27 °C (72–81 °F)
- Compatible on the things that matter: shared water near 22–27 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Spotted Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Spotted Rubbernose Pleco✅ CompatiblePeaceful · 12 cm · Medium care · 20–26 °C (68–79 °F)
- Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
- Sterbai Corydoras✅ CompatiblePeaceful · 6.5 cm · Medium care · 24–30 °C (75–86 °F)
- Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
- Keep Sterbai Corydoras in a shoal of 6+ or it gets stressed and nippy.
- Blue Gourami⚠️ With cautionSemi-aggressive · 13 cm · Easy care · 22–28 °C (72–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Banded Gourami and Blue Gourami are both labyrinth fish and often treat each other as rivals — give a large, broken-up tank and be ready to separate them.
- Your 75 L tank is below the ~113 L this pairing really wants — crowding raises aggression.
- Boesemani Rainbowfish⚠️ With cautionPeaceful · 11 cm · Medium care · 24–28 °C (75–82 °F)
- Expect Banded Gourami to harass Boesemani Rainbowfish at times; give dense cover and watch them at feeding.
- Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
- Keep Boesemani Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
- Bristlenose Pleco⚠️ With cautionPeaceful · 12 cm · Easy care · 23–30 °C (73–86 °F)
- Your 75 L tank is below the ~95 L this pairing really wants — crowding raises aggression.
- Cupid Cichlid⚠️ With cautionSemi-aggressive · 12 cm · Medium care · 24–29 °C (75–84 °F)
- Banded Gourami and Cupid Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 75 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
- Giant Betta⚠️ With cautionPeaceful · 12 cm · Medium care · 24–28 °C (75–82 °F)
- Expect Banded Gourami to harass Giant Betta at times; give dense cover and watch them at feeding.
- Banded Gourami and Giant Betta are both labyrinth fish and often treat each other as rivals — give a large, broken-up tank and be ready to separate them.
- Golden Vampire Pleco⚠️ With cautionSemi-aggressive · 11 cm · Medium care · 26–30 °C (79–86 °F)
- Banded Gourami and Golden Vampire Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Mascara Barb⚠️ With cautionPeaceful · 12 cm · Medium care · 20–25 °C (68–77 °F)
- Banded Gourami is semi-aggressive and may chase or nip the smaller Mascara Barb — plant heavily and break up sight lines.
- Your 75 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
- Keep Mascara Barb in a shoal of 8+ or it gets stressed and nippy.
- Medusa Pleco⚠️ With cautionPeaceful · 12 cm · Medium care · 26–30 °C (79–86 °F)
- Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
- Murray River Rainbowfish⚠️ With cautionPeaceful · 11 cm · Easy care · 15–26 °C (59–79 °F)
- Banded Gourami and Murray River Rainbowfish are close in size, but the semi-aggressive one tends to dominate — add murray river rainbowfish in a group to spread the pressure.
- Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
- Pearl Gourami⚠️ With cautionPeaceful · 12 cm · Medium care · 24–28 °C (75–82 °F)
- Expect Banded Gourami to harass Pearl Gourami at times; give dense cover and watch them at feeding.
- Banded Gourami and Pearl Gourami are both labyrinth fish and often treat each other as rivals — give a large, broken-up tank and be ready to separate them.
- Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
- Pictus Catfish⚠️ With cautionSemi-aggressive · 12 cm · Medium care · 22–27 °C (72–81 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 75 L tank is below the ~210 L this pairing really wants — crowding raises aggression.
- Polka-dot Loach⚠️ With cautionSemi-aggressive · 13 cm · Medium care · 24–28 °C (75–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Powder Blue Cichlid⚠️ With cautionSemi-aggressive · 12 cm · Medium care · 24–28 °C (75–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 75 L tank is below the ~170 L this pairing really wants — crowding raises aggression.
- Keep Powder Blue Cichlid in a shoal of 6+ or it gets stressed and nippy.
- Rubber Lip Pleco⚠️ With cautionPeaceful · 12 cm · Easy care · 20–26 °C (68–79 °F)
- Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
- Striped Eel Loach⚠️ With cautionPeaceful · 12 cm · Medium care · 24–28 °C (75–82 °F)
- Your 75 L tank is below the ~95 L this pairing really wants — crowding raises aggression.
- T-bar Cichlid⚠️ With cautionSemi-aggressive · 12 cm · Medium care · 22–28 °C (72–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
- Alligator Gar⛔ Not recommendedAggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
- Two assertive fish, one genuinely aggressive: Banded Gourami and Alligator Gar will hold territory and clash.
- Size gap is too large (250 vs 12 cm): Alligator Gar will treat Banded Gourami as food.
- Your 75 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
- Clown Knifefish⛔ Not recommendedAggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
- Banded Gourami and Clown Knifefish are both territorial and at least one is outright aggressive — expect serious fighting.
- Banded Gourami is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
- Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Fire Eel⛔ Not recommendedSemi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
- Fire Eel (100 cm) is big enough to swallow the 12 cm Banded Gourami whole.
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
- Koi⛔ Not recommendedPeaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
- Koi (90 cm) is big enough to swallow the 12 cm Banded Gourami whole.
- Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
- Redtail Catfish⛔ Not recommendedAggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
- Two assertive fish, one genuinely aggressive: Banded Gourami and Redtail Catfish will hold territory and clash.
- Banded Gourami is bite-sized to a 120 cm predatory redtail catfish — it will be eaten.
- Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
- Spotted Gar⛔ Not recommendedAggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
- Two assertive fish, one genuinely aggressive: Banded Gourami and Spotted Gar will hold territory and clash.
- Size gap is too large (90 vs 12 cm): Spotted Gar will treat Banded Gourami as food.
- Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
- Wels Catfish⛔ Not recommendedAggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
- Two assertive fish, one genuinely aggressive: Banded Gourami and Wels Catfish will hold territory and clash.
- Banded Gourami is bite-sized to a 300 cm predatory wels catfish — it will be eaten.
- Your 75 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
- Wolf Cichlid⛔ Not recommendedAggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
- Banded Gourami and Wolf Cichlid are both territorial and at least one is outright aggressive — expect serious fighting.
- Wolf Cichlid (72 cm) is big enough to swallow the 12 cm Banded Gourami whole.
- Your 75 L tank is below the ~760 L this pairing really wants — crowding raises aggression.
Compatibility is computed from each species' care data — a strong starting point, not a guarantee. Individual temperament varies, so always introduce new fish slowly and watch them.
Banded Gourami care specs
- Care level
- Easy
- Breeding
- Medium
- Max size
- 12 cm (4.7 in)
- Min tank size
- 75 L (19.8 gal)
- Temperature
- 22–28 °C (72–82 °F)
- pH
- 6.5–7.5
- Hardness
- 5–15 dGH
- Lifespan
- 3–5 years
- Diet
- Omnivore
- Swim level
- Middle
- Group size
- Best alone or in a pair
- Family
- Osphronemidae
- Origin
- South and Southeast Asia — India, Bangladesh, Myanmar, and the Mekong basin
What is a Banded Gourami?
The Banded Gourami (Trichogaster fasciata) is a medium-to-large labyrinth fish from the floodplains and slow-moving waterways of South and Southeast Asia. Males display bold diagonal bands of orange, blue-green, and yellow across a laterally compressed body that reaches up to 12 cm (4.7 in) — making this one of the more visually striking gouramis regularly available to the hobby. Females are considerably plainer, carrying a silvery-brown base with faint banding, but share the same robust, deep-bodied build.
Like all labyrinth fish, the Banded Gourami possesses a specialised organ that lets it extract oxygen directly from atmospheric air. This adaptation evolved in warm, sluggish, oxygen-depleted waters and translates to genuine hardiness in the aquarium. Unlike the delicate Dwarf Gourami (Trichogaster lalius), this species tolerates a broader temperature range, is far less susceptible to Dwarf Gourami Iridovirus, and acclimates well to a range of tap-water conditions as long as extremes are avoided. It is classed as easy care, making it a strong choice for aquarists who want a bold, large-bodied gourami without the fragility of smaller labyrinth relatives.
Where do Banded Gouramis come from?
Wild Banded Gouramis are distributed across South and Southeast Asia — India, Bangladesh, Myanmar, and the Mekong basin stretching into Thailand and beyond. They inhabit slow-flowing rivers, paddy fields, swamps, and seasonal floodplains: warm, often turbid water with dense marginal vegetation, soft substrates, and little current. Seasonal flooding expands their range considerably, so they are adapted to variable conditions.
Understanding this origin explains many of the species’ husbandry requirements. The water is warm and soft to moderately hard, and the fish spend most of their time among submerged or emergent plant stems in the middle and upper water column. Dense vegetation is not decorative preference — it is genuine habitat, and replicating it is one of the most effective ways to keep this species calm and healthy.
What size tank does a Banded Gourami need?
The minimum for a single male or a male-female pair is 75 litres (20 gallons). That figure covers the fish’s territory without crowding, but a 110–150 L (29–40 gal) footprint gives substantially more room to manage the species’ semi-aggressive streak and supports a small group of tank-mates alongside.
The tank should be longer than it is tall. Banded Gouramis cruise the middle column and need horizontal swimming space; a tall, narrow tank provides neither good territory nor easy access to the surface for air-breathing. Lid coverage is important — like most gouramis, they will jump when startled.
Filtration should be gentle. Strong, turbulent flow stresses the fish and is at odds with their slow-water origins. A sponge filter, a canister on a spray bar, or an internal filter baffled to reduce surface agitation all work well. Weekly partial water changes of roughly 25–30 % maintain water quality without requiring aggressive filtration that fights the fish.
What water parameters do Banded Gouramis need?
- Temperature: 22–28 °C (72–82 °F). The species tolerates the cooler end better than many gouramis, but a stable mid-range around 24–26 °C (75–79 °F) suits it best.
- pH: 6.5–7.5. Slightly acidic to neutral.
- Hardness: 5–15 dGH. Soft to moderately hard.
Most treated tap water in the UK and much of North America falls within these ranges without additives. If your tap water is very hard or alkaline, small additions of peat or blackwater extract can bring parameters into range, but chasing exact numbers matters less than keeping conditions stable. Sudden swings in temperature or pH are more damaging than holding a value at the edge of the acceptable range. Cycle the tank fully before introduction and monitor ammonia and nitrite during the first weeks.
What do Banded Gouramis eat?
Banded Gouramis are omnivores with a broad, flexible diet. A quality flake or small pellet designed for tropical fish forms a practical staple. Supplement this two or three times per week with live or frozen foods — daphnia, bloodworm, brine shrimp, and mosquito larvae are all accepted readily and help bring males into full breeding colour.
Vegetable matter rounds out the diet: blanched spinach, cucumber, or spirulina-enriched flake mirrors the plant material they browse in the wild. Feed small amounts once or twice daily, only as much as the fish consume in a few minutes, and remove any uneaten food promptly. Overfeeding is among the most common causes of deteriorating water quality in gourami tanks.
Are Banded Gouramis aggressive — and what fish can live with them?
Banded Gouramis are classed as semi-aggressive, and most of that aggression is directed at conspecific males and at similarly shaped or brightly coloured fish. A single male in a well-decorated tank is manageable; two males in a tank under about 150 L (40 gal) will typically fight persistently. Females coexist more peacefully with each other and with a single male.
Good tank-mate choices are robust, similarly sized community fish that occupy different tank zones: large tetras (black skirt, Buenos Aires), barbs (if not nippy), corydoras, loaches, and peaceful bottom dwellers all work. Avoid fin-nipping species — tiger barbs are a common mistake — and avoid very small fish that may be harassed or eaten. Delicate or slow species with flowing fins (angelfish, fancy guppies) are also risky. A heavily planted tank with clear visual breaks, driftwood, and dense stem plant groupings at the sides significantly reduces territorial tension.
For a full, filterable list of compatible and incompatible species, see Banded Gourami tank mates.
How do you tell a male Banded Gourami from a female?
Sexing adult Banded Gouramis is reliable and straightforward once fish are past juvenile size. Males carry vivid orange-and-blue diagonal banding on the body, a blue-green iridescent sheen across the flanks, and a distinctly pointed dorsal fin that tapers to a filament at the rear edge. Colour intensity increases further when males are healthy, well-fed, and in breeding condition. Females are considerably duller — a silvery or brownish-olive base with faint, often indistinct banding — and have a rounded dorsal fin without the pointed extension. Females also tend to carry a rounder belly, which becomes especially visible when gravid.
Juvenile fish under about 5–6 cm show little difference; give them time and the males’ colour and fin shape emerge gradually over the first several months.
How do Banded Gouramis breed?
Banded Gouramis are bubble-nest builders, following the same general labyrinth-fish reproductive pattern as bettas and other gouramis. Breeding is rated medium difficulty — rewarding but requires preparation.
Condition a pair for two to three weeks on varied live and frozen foods before attempting to breed. The breeding tank should be shallow — around 20–25 cm (8–10 in) water depth — with a clump of floating plants (java moss, hornwort) as an anchor for the bubble nest, very gentle or no filtration, and a secure lid to maintain warm, humid air above the surface. The male constructs a floating nest of mucus-coated bubbles among the plant matter, then courts the female with a spread-fin display.
Spawning involves the male wrapping around the female in a tight embrace, fertilising eggs as they are released. The male collects the falling eggs and deposits them in the nest. The female should be removed after spawning — the male may become aggressive toward her once eggs are present. He guards and tends the nest; fry hatch in roughly 24–36 hours and are free-swimming within two to three days, at which point the male should also be removed. First foods for fry are infusoria and commercially prepared fry powder, graduating to baby brine shrimp as they grow.
What are common Banded Gourami diseases?
This species is hardier than many labyrinth fish, but it is not immune to typical freshwater ailments. Ich (white spot disease — Ichthyophthirius multifiliis) presents as small white dots over the body and fins and is almost always introduced with new fish or plants. Velvet (Oodinium) produces a fine gold or rust-coloured dusting on the skin. Fin rot — ragged, receding fin edges — is typically a consequence of poor water quality, injury from fin-nippers, or bacterial infection following stress. Bacterial infections causing ulcers or raised scales can appear when fish are kept in suboptimal or unstable conditions.
Prevention covers the vast majority of these problems: a cycled tank, stable temperature, regular partial water changes, and a 2–4 week quarantine for all new fish and live plants before they contact the main tank. Banded Gouramis are notably less susceptible to Dwarf Gourami Iridovirus — a chronic viral disease that devastates T. lalius — but are not entirely immune to other viral or systemic conditions.
Health note: Disease diagnosis and medication dosing are beyond the scope of a care profile. If a fish shows signs of illness, confirm the diagnosis against a reputable veterinary or fish-health source before medicating, and treat in a quarantine tank where possible.
How long do Banded Gouramis live?
A well-kept Banded Gourami lives 3–5 years. As with most fish sold in the hobby, the age at purchase is unknown — fish may be several months to a year old by the time they reach a store. Providing a heated, filtered, appropriately sized tank with stable water chemistry and a varied diet gives the best chance of reaching the upper end of that range. Males in full colour and breeding condition are a reliable indicator that husbandry is on track; faded colour and clamped fins are the first visible warning signs that something in the environment needs attention.
Frequently asked questions
Can I keep two male Banded Gouramis together?
It is risky in tanks under 150 litres. Males are territorial with each other and will spar aggressively. A single male with one or two females — or a pair in a well-decorated tank with visual breaks — is the safer approach.
How does the Banded Gourami differ from the Dwarf Gourami?
The Banded Gourami (Trichogaster fasciata) grows larger — up to 12 cm versus 5–6 cm for the Dwarf Gourami (Trichogaster lalius) — and is noticeably hardier and less disease-prone. It also tolerates a wider temperature range and is less susceptible to the Dwarf Gourami Iridovirus that plagues the dwarf species.
What you need to keep a banded gourami
The baseline is a heated, filtered 75 L+ tank: a reliable heater to hold 22–28 °C (72–82 °F), a gentle filter that won't batter a banded gourami in the current, and a tight-fitting lid. Cycle the tank fully before adding any fish.
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