Should I buy it?
Dwarf Gourami
Trichogaster lalius
Also known as: trichogaster lalius
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.
Dwarf Gourami tank mates · 60L tank size hub
peaceful · beginner care
Sources & confidencehigh · verified · beginner: good
Checked against several solid care sources that mostly agree. Numbers here are a careful starting point. Your tap water, tank size, and habits decide the rest. How we evaluate.
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.
Common mistakeSkipping quarantine on high-volume farm dwarfs is how keepers invent a planted tank that wastes away from DGIV. The fish can look fine at purchase and decline from an incurable virus weeks later. Source carefully, quarantine for weeks, and do not stack two males in one short tank.
Top things that go wrong
- Shrimp & snails. Cherry shrimp and other dwarfs can coexist with peaceful small fish; baby shrimp are food for almost anything that finds them.
What most shops don't tell you
- 1.Myth: dwarf gouramis are bulletproof colourful community fish for any planted kit. Reality: males fight each other, they need open air at the surface, and commercial stock carries DGIV risk — quarantine and one-male plans matter more than the rainbow label.
- 2.Dwarf Gourami Iridovirus (DGIV) sits in commercial stock with no cure. Quarantine new fish for three weeks before adding to a main tank.
- 3.Two male dwarf gourami in 60L with nowhere to break line of sight. The slow chase becomes constant stress.
- 4.Mixing with large, boisterous barbs before checking fin length and current.
- 5.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
- Pearl Gourami100L min · same fish family
- Paradise fish120L min · same group, similar adult size
- Opaline gourami150L min · same fish family
- Moonlight gourami180L 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 matesnames this fish as a conditional pairing — read the pair page conditions
- 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 matesnames this fish as a conditional pairing — read the pair page conditions
- 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 above. Here: pH band, swim level, bioload, and activity.
Swim zones
Care snapshot
Quick compare before you buy. Not a score of how “good” the fish is.
- Beginner ease81
- Peacefulness82
- Community fit70
- Small-tank fit100
- Hardiness79
- Energy54
Numbers are deterministic planning indices from Fishori fields — not a scientific score of your individual fish.
Example setups
Starting points only. Run the pair checker for every fish you add.
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.
Safer directions include: Cherry Barb, Guppy, Harlequin Rasbora.
Avoid “one of everything” baskets — Dwarf Gourami belongs in a plan built around territory, line-of-sight breaks, and matched water chemistry.
Compatibility
Tank mates for Dwarf Gourami
Usually safer (engine GOOD): Cherry Barb, Guppy, Harlequin Rasbora. Conditional (CAUTION — read the pair page before buying): Betta, Tiger Barb. Avoid (RISKY): Oscar. Every name links to a live pair check — the lists are a shortlist, not a stocking plan.
Usually safer
Open a pair page with this fish as the starting point.
Needs planning
Read the blocking rule on each pair page before experimenting.
Usually avoid
Do-not-stock combinations on conservative hobby rules.
Compare with
Run a real pair check: Dwarf Gourami + Cherry Barb
- Try Cherry Barb — open the pair check.
- Try Guppy — open the pair check.
- Try Harlequin Rasbora — open the pair check.
Behaviour and temperament
Dwarf gouramis are 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 tight with no gap. Stress shows as clamped fins and hiding when the surface is contested or the filter blasts the film.
What sets them off
- Sudden crowding
- Poor water quality
Fin nipping: Not a habitual fin-nipper; stressed or crowded individuals can still test fins.
Predation: Not a predator toward similarly sized community fish; fry and dwarf shrimp are still fair game for most species.
Territory: Holds a patch (cave, corner, or surface). Break sight lines so neighbours can pass.
Planted tanks: excellent — easy plant ideas
In the glass: typical and warning signs
- A male holds mid-to-top water among plants and rests under floating cover between feeds.
- Labyrinth breathing at the surface is normal ownership, not oxygen emergency alone.
- Clamped fins under harsh surface current mean turn the filter down first.
- Sudden wasting after a new purchase often means disease risk — quarantine discipline failed.
- Two males in sight of each other will often fight until one is excluded from the surface.
- Bettas sharing the film are a flare war waiting to happen.
- Remove the losing male the same day fins tear or appetite collapses.
- Never add unquarantined farm stock straight into a mature planted display.
Fish behaviour can vary between individuals and tank setups. Always observe new fish closely after introduction.
Water, food, and grouping
Hardness
soft
Diet
omnivore
Dwarf gouramis take flake and micro-pellets at the surface and midwater, then ignore food that sinks past them too fast. Offer a quality omnivore staple plus frozen foods a few times a week, and keep portions the fish can finish without fouling the film. They compete poorly with frantic surface feeders, so feed where the gourami holds station.
Shrimp & snails
Cherry shrimp and other dwarfs can coexist with peaceful small fish; baby shrimp are food for almost anything that finds them.
Dwarf Gourami is fine singly or as a researched pair — check behaviour before doubling up.
- 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
Tank-mates hub, matching guides, category peers, and litre stocking lists around this species’ minimum tank.
Plan with tools
Check mates as pairs first, then add this fish in the tank builder for the full stocking.
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:
Research: verified · Confidence: high · 3 linked source(s). We do not invent citations.
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.
Featured compatibility checks
Curated pair pages for Dwarf Gourami. Each opens a full verdict — not just a list label.
- Dwarf Gourami + Guppy
- Dwarf Gourami + Corydoras Catfish
- Dwarf Gourami + Cardinal Tetra
- Dwarf Gourami + Cherry Barb
- Dwarf Gourami + Ember Tetra
- Dwarf Gourami + Harlequin Rasbora
- Dwarf Gourami + Neon Tetra
- Dwarf Gourami + Panda Corydoras
- Dwarf Gourami + Rummy Nose Tetra
- Dwarf Gourami + Platy
- Dwarf Gourami + Molly
- Dwarf Gourami + Angelfish
Common questions about Dwarf Gourami
- How big do Dwarf Gourami get?
- Around 7cm. Small enough to fit a 60L tank visually, but their territory needs are larger than the body length.
- What size tank does Dwarf Gourami need?
- 60L is workable for a single male in a planted, quiet tank. 80L+ if you want a male/female pair.
- Are Dwarf Gourami aggressive?
- Dwarf gouramis are 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 tight with no gap. Stress shows as clamped fins and hiding when the surface is contested or the filter blasts the film.
- What is the most common mistake with Dwarf Gourami?
- Skipping quarantine on high-volume farm dwarfs is how keepers invent a planted tank that wastes away from DGIV. The fish can look fine at purchase and decline from an incurable virus weeks later. Source carefully, quarantine for weeks, and do not stack two males in one short tank.
- What fish can live with Dwarf Gourami?
- The Dwarf Gourami profile lists Cherry Barb, Guppy, Harlequin Rasbora among its safer pairings (engine-checked GOOD). Betta, Tiger Barb are conditional (CAUTION): workable only with the specific conditions on each pair page. Avoid Oscar (RISKY). Run the pair checker for your exact water and tank size before stocking.