Should I buy it?
Chocolate gourami
Sphaerichthys osphromenoides
Also known as: kissing gourami (wrong. Trade confusion)
An advanced-keeper fish with a narrow blackwater soft-acidic requirement. Frequently dies in standard community water within weeks of purchase.
Chocolate gourami tank mates · 80L tank size hub
peaceful · advanced care
Sources & confidencehigh · partially verified · beginner: not recommended
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: Established blackwater tanks at pH 4.5–6.0 with tannins, soft substrate, and experienced water chemistry management.
Avoid if: Hard tap water, neutral pH, or any community setup without specific blackwater preparation.
Common mistakeDropping chocolate gouramis into a standard tropical community above pH 6.5 is how keepers invent bacterial crashes and fish that stop eating within days. They need soft, acidic, warm blackwater conditions — not a hard bright community kit with tiger barbs.
Top things that go wrong
- Mouth gap vs tiny tank mates. May eat tank mates small enough to fit the adult mouth — plan adult sizes, not shop sizes.
- Specialist husbandry. Schooling species — buy 4+ together. Smaller groups stress and lose colour.
- Shrimp & snails. Not shrimp-safe — adults, fry, or both get eaten.
What most shops don't tell you
- 1.Myth: chocolate gouramis are just another peaceful community gourami for tap-water tanks. Reality: they are advanced soft-water specialists that crash in hard bright communities — warm acidic tannin water and calm company are required, not optional Plan the husbandry before the shop impulse buy.
- 2.Predation risk scales with gape, night feeding, and crowding. 'they grew up together' is a schedule, not a law.
- 3.Classed peaceful for similar-sized community use. Still a bite-sized risk toward fry or very small comm fish in small volumes.
- 4.Sold next to mollies in chain stores that cannot match the chemistry range.
- 5.Housed in cool rooms without stable 25 to 30 °C zones in winter.
- 6.Use RO/peat or equivalent only if you can maintain the rest of the ion profile. Swings kill faster than 'wrong' pH in many cases. Leaf litter and long plants help.
- 7.Advanced species — research stable parameters before buying.
About this species
Chocolate gouramis are 5 cm mouthbrooders from peaty, very soft, warm blackwater. Shy and unsuitable for the average hard-water community if long-term health is the goal.
- Croaking gourami80L min · same group, comparable tank size
- Dwarf Gourami60L min · same group, similar adult size
- Pearl Gourami100L min · same fish family
- Honey Gourami40L min · same group, similar adult size
- Paradise fish120L min · same group, similar adult size
- Sparkling Gourami40L min · same group, similar adult size
- Betta20L min · same group, similar adult size
- Opaline gourami150L min · same fish family
- Hillstream Loachalso advanced peaceful, similar tank size
- Splash tetraalso advanced peaceful, similar tank size
No reverse lookups listed yet.
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 ease26
- Peacefulness68
- Community fit63
- Small-tank fit100
- Hardiness36
- Energy24
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: Chili Rasbora, Ember Tetra, Sparkling Gourami.
Avoid “one of everything” baskets — Chocolate gourami belongs in a plan built around territory, line-of-sight breaks, and matched water chemistry.
Compatibility
Tank mates for Chocolate gourami
Usually safer (engine GOOD): Chili Rasbora, Ember Tetra, Sparkling Gourami. Conditional (CAUTION — read the pair page before buying): Corydoras Catfish, Dwarf Gourami. Avoid (RISKY): African Cichlid, Bala / silver shark, Betta, Oscar, Tiger Barb. 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: Chocolate gourami + Chili Rasbora
Behaviour and temperament
Chocolate gouramis are peaceful but delicate. They stay calmer in soft warm groups of four or more with heavy cover. Stress shows as clamping, hiding, and refusal to feed when pH is high or neighbours are rough at the surface.
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: May eat tank mates small enough to fit the adult mouth — plan adult sizes, not shop sizes.
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 small group works leaf litter and soft planted cover in warm acidic water.
- Shyness with sudden movement is normal — give cover before calling them broken.
- Stopping food within days of a hard community transfer usually means chemistry failed.
- Torn fins after barbs arrive mean neighbour choice failed immediately.
- Low malice toward similar soft-water nano fish.
- They lose to rough midwater fish long before they start wars.
- Move them into a dedicated soft-water tank before stacking meds blindly.
- Remove nippy or boisterous fish at the first clamp-and-hide week.
Fish behaviour can vary between individuals and tank setups. Always observe new fish closely after introduction.
Water, food, and grouping
Hardness
soft
Diet
omnivore
Chocolate gouramis are shy soft-water omnivores that take fine frozen foods and micro-pellets in warm, acidic, tannin-stained water. Hard community flake routines fail fast. Feed small portions under cover for a group of four or more, and keep the surface calm so they will leave hiding to eat.
Shrimp & snails
Not shrimp-safe — adults, fry, or both get eaten.
Schooling species — buy 4+ together. Smaller groups stress and lose colour.
- Hold 25 to 30 °C steadily on a real thermometer, not the dial on the heater.
- Aim for pH 4 to 6 and a hardness you can re-test in two weeks. A one-time strip in the shop car park is not a water test.
- Schooling species. Buy 4 or more from the same tank on the same day before adding any centrepiece fish.
- Tank volume meets or exceeds 80L published minimum for adults.
- You can stock at least 4 individuals (group welfare).
- Heater can hold 25–30°C without cooking cooler-water tank mates.
- No known fin-nippers paired with long-finned fish unless you accept documented risk.
- No tank mates small enough to fit the adult mouth gap for this species.
- Filter maturity / stable parameters before adding sensitive stock.
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 80L minimum tank needs a filter rated for at least 320L/hr turnover and a heater to hold 25–30°C reliably.
Plant suggestions
Chocolate gourami does well in planted tanks. Plants compatible with 25–30°C and pH 4–6:
Research: partially verified · Confidence: high · 4 linked source(s). We do not invent citations.
How Fishori evaluates compatibility (same logic as pair and tank tools).
- Seriously Fish. Sphaerichthys osphromenoides
Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).
- FishBase. Sphaerichthys osphromenoides
Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.
- Wikipedia. Sphaerichthys osphromenoides
Secondary: general species context; verify all husbandry numbers against a dedicated aquarium care sheet and your test kit, not a single table row.
- Wikipedia. Chocolate gourami
Encyclopaedia-level overview; verify all aquarium care numbers on specialist care sheets for your stock.
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.
Common questions about Chocolate gourami
- How big do Chocolate gourami get?
- Chocolate gourami adults reach about 5 cm. Shop fish look smaller; stock for the adult length.
- What size tank does Chocolate gourami need?
- 80L is the planning floor for adult swimming space and bioload. A 98L+ tank is the more comfortable long-term footprint. Length and depth matter as much as raw litres for active or territorial fish.
- Are Chocolate gourami aggressive?
- Chocolate gouramis are peaceful but delicate. They stay calmer in soft warm groups of four or more with heavy cover. Stress shows as clamping, hiding, and refusal to feed when pH is high or neighbours are rough at the surface.
- Do Chocolate gourami need to be kept in a group?
- Schooling species — buy 4+ together. Smaller groups stress and lose colour.
- What is the most common mistake with Chocolate gourami?
- Dropping chocolate gouramis into a standard tropical community above pH 6.5 is how keepers invent bacterial crashes and fish that stop eating within days. They need soft, acidic, warm blackwater conditions — not a hard bright community kit with tiger barbs.
- What fish can live with Chocolate gourami?
- The Chocolate gourami profile lists Chili Rasbora, Ember Tetra, Sparkling Gourami among its safer pairings (engine-checked GOOD). Corydoras Catfish, Dwarf Gourami are conditional (CAUTION): workable only with the specific conditions on each pair page. Avoid African Cichlid, Bala / silver shark, Betta, Oscar (RISKY). Run the pair checker for your exact water and tank size before stocking.