Should I buy it?
Dwarf Gourami
Trichogaster lalius
Also known as: trichogaster lalius, Trichogaster lalius
Fishori provides conservative planning guidance, not guarantees.
Based on multiple reputable aquarium care sources with strong agreement. Use the numbers here as planning defaults — your room, water, and routine still shape real-world outcomes.
A striking centrepiece for a 60-80L community when the fish is healthy. The catch is DGIV, an incurable iridovirus that sits in commercial stock.
Best for
Quiet planted community tanks where one male can be the calm centrepiece.
Avoid if
You have boisterous mid-water swimmers like tiger barbs, or want to keep two males together.
Top things that go wrong
- Shrimp & snails. Shrimp: compatible in most setups. Cherry shrimp and other dwarf species coexist with peaceful small fish, though baby shrimp are food for almost any fish that gets to them.
Common mistakeNot sourcing carefully. High-volume farm imports carry DGIV at elevated rates. The fish looks fine at purchase and wastes away from an incurable virus.
What most shops don't tell you
- 1.Dwarf Gourami Iridovirus (DGIV) sits in commercial stock with no cure. Quarantine new fish for three weeks before adding to a main tank.
- 2.Two male dwarf gourami in 60L with nowhere to break line of sight. The slow chase becomes constant stress.
- 3.Mixing with large, boisterous barbs before checking fin length and current.
- 4.Buy farmed stock with care: Dwarf Gourami Iridovirus (DGIV) sits in a meaningful share of the trade and there is no cure. Quarantine for three weeks before adding to your main tank.
About this species
Dwarf gouramis are small Indian labyrinth fish that breathe air at the surface as well as through gills. Males show blue and red bands. Females stay grey and plain.
- Chocolate gourami80L min · same group, similar adult size
- Croaking gourami80L min · same group, similar adult size
- Honey Gourami40L min · same group, similar adult size
- Sparkling Gourami40L min · same fish family
- Betta20L min · same group, similar adult size
- Pearl Gourami100L min · same fish family
- Paradise fish120L min · same group, similar adult size
- Opaline gourami150L min · same fish family
- Amano Shrimpalso beginner peaceful, similar tank size
- Assassin Snailalso beginner peaceful, similar tank size
- Beckford Pencilfishalso beginner peaceful, similar tank size
- Black Neon Tetraalso beginner peaceful, similar tank size
- Black phantom tetraalso beginner peaceful, similar tank size
- Bloodfin tetraalso beginner peaceful, similar tank size
- Amano Shrimp tank mateslists this fish as a safe and recommended mate
- Black Neon Tetra tank mateslists this fish as a safe and recommended mate
- Black phantom tetra tank mateslists this fish among its recommended pairings
- Black ruby barb tank mateslists this fish as a safe and recommended mate
- Bloodfin tetra tank mateslists this fish among its recommended pairings
- Bolivian Ram tank mateslists this fish as a safe and recommended mate
- Bronze corydoras tank mateslists this fish among its recommended pairings
- Brown / hockey-stick pencilfish tank mateslists this fish as a safe and recommended mate
Plan grid
Key limits are shown above; this section adds planning detail: pH band, swim level, bioload and activity, and the radar.
Swim zones
Planning trait chart
Six indices for comparing species on paper before you spend.
- Beginner ease81
- Peacefulness82
- Community fit77
- Small-tank fit100
- Hardiness79
- Energy54
Numbers are deterministic planning indices from Fishori fields — not a scientific score of your individual fish.
Common setup sketches
Conservative patterns from Fishori fields — still run the pair checker for every species you add; sketches are not a stocking guarantee.
Rough 90L+ layout: one calm centrepiece, 8–12 small tetras/rasboras, 6–8 corydoras-type bottom fish — verify every name in the pair checker before buying.
Safe directions on file include: Neon Tetra, Corydoras Catfish, Harlequin Rasbora.
Avoid “one of everything” baskets — Dwarf Gourami belongs in a plan built around territory, line-of-sight breaks, and matched water chemistry.
Tank mate intelligence
Pair with corydoras, neon tetras, harlequin rasboras, ember tetras, kuhli loaches. Avoid fin nippers and another male dwarf gourami.
Pair-level compatibility with this fish as anchor.
Read the blocking rule on each pair page before experimenting.
Do-not-stock combinations on conservative hobby rules.
Compare with
Run a real pair check: Dwarf Gourami + Neon Tetra
Behaviour, temperament, and what to watch
Prose and lists come from the same record: read temperament first, then glass-level signals so you are not surprised after day three.
Peaceful with other species, but males do not tolerate other male dwarf gouramis. They are surface breathers and need open access to air. Do not seal the lid.
Stress / aggression triggers on file
- Sudden crowding
- Poor water quality
Fin nipping: Not a habitual fin-nipper, but individuals can still test fins under stress or in a crowded tank.
Predation: Not a predator toward similarly-sized community fish. The usual community caveats about mouth size still apply for very small fry or shrimp.
Territory: Holds territory on substrate, in caves, or at the surface film. Break the line of sight with hardscape, and avoid placing the tank where the fish can see its own reflection.
Planted tanks: excellent — easy plant ideas
In the glass: typical and warning signs
- Moderate pacing — not hyperactive, not motionless.
- Clamped fins, gasping at the surface, hiding non-stop, or refusing food after the first week.
- Rapid breathing when parameters swing — fix ammonia/nitrite first, then reassess mates.
- Corner guarding, flaring, or body-blocking — territory is normal until it becomes relentless.
- Separate or rehome if injuries appear, one fish is pinned, or feeding becomes a daily chase.
- If water is stable but behaviour worsens, reduce stocking or remove the highest-impact species first.
Fish behaviour can vary between individuals and tank setups. Always observe new fish closely after introduction.
Care parameters: water, food, inverts, grouping
Chemistry and group rules sit here so you are not re-reading the same line from tank mate or temperament blocks. Swim level is in the plan grid above.
Hardness
soft
Diet
omnivore
Mixed diet: a quality flake or pellet as the staple, with frozen or live foods two or three times a week.
Shrimp & snails
Shrimp: compatible in most setups. Cherry shrimp and other dwarf species coexist with peaceful small fish, though baby shrimp are food for almost any fish that gets to them.
Kept singly or as a paired setup. Check the species profile before doubling up in one tank.
Breeding behaviour depends on the species. Research before you buy a mixed-sex group of this fish.
- Hold 24 to 28 °C steadily on a real thermometer, not the dial on the heater.
- Aim for pH 6 to 7.5 and a hardness you can re-test in two weeks. A one-time strip in the shop car park is not a water test.
- Footprint: short wide tanks and tall narrow tanks fish differently for the same volume. Match the tank shape to the swim pattern, not just the litre count.
- Tank volume meets or exceeds 60L published minimum for adults.
- Heater can hold 24–28°C without cooking cooler-water tank mates.
- No known fin-nippers paired with long-finned fish unless you accept documented risk.
Explore and stocking hubs
Same library as the rest of Fishori: tank-mate index for this species, category peers, guides, and litre-based stocking lists where min tank on file is within the hub volume.
Plan with tools
Pair-level rules and multi-fish stocking use the same conservative engine — add this fish in the tank builder only after mates pass pair checks.
Filtration & heating
A 60L minimum tank needs a filter rated for at least 240L/hr turnover and a heater to hold 24–28°C reliably.
Plant suggestions
Dwarf Gourami does well in planted tanks. Plants compatible with 24–28°C and pH 6–7.5:
Profile status: verified · Evidence tier: high · 3 linked source(s). Fishori does not fabricate citations.
Fishori uses conservative planning rules based on these sources.
Confidence is explained in the summary at the top of this page (same tier as here), not repeated below.
How Fishori evaluates compatibility (same logic as pair and tank tools).
- Seriously Fish. Trichogaster lalius
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Trichogaster lalius
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Trichogaster lalius
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
Evidence notes
- The Seriously Fish profile for the binomial in this record was successfully reached as the primary aquarium reference.
- FishBase contributes natural-range size and habitat context. Translate those numbers through your heater, your water report, and your tank footprint before stocking.
- Wikipedia is only cited if the article URL returned OK. Use it for orientation, not as the only care sheet for an import.
- All compatibility text reflects typical hobby experience and the Fishori model. Individual fish, shop stress, and the order tank mates are added in can still defy a single-paragraph label.
- Fishori profiles work from typical aquarium trade sizes and hobby care norms. Specialist site checks and literature review for this species are not yet recorded here, so the ranges on this page are planning numbers rather than guarantees.