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Should I buy it?

Pearl Gourami

Trichopodus leerii

Also known as: pearl, lace gourami

Larger than honey or dwarf gourami at 12 cm, and calmer than most. Tall body wants a tall planted tank with surface plants and quiet mid-water company.

Pearl Gourami tank mates · 100L tank size hub

VerdictGOOD

peaceful · beginner care

Sources & confidencehigh · partially 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.

Min tank
100L
Adult
~12cm
Group
1
Temp
2428°C

Best for: Planted community tanks 100L or more with quiet mid-water shoals.

Avoid if: Your tank is under 80L or you want a small short-bodied centrepiece.

Common mistakeHousing pearl gouramis in a short cube without height is how keepers invent posture problems and stale surface air. They need vertical space, clean access to air, and surface plants for bubble-nest behaviour. A low lid-to-substrate cube fights the species.

Top things that go wrong

  1. 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: pearl gouramis thrive in any short community cube as hardy centrepiece gouramis. Reality: they need height, open air at the surface, and calm neighbours — short tanks and fin-nippers undo the peaceful reputation quickly Plan the husbandry before the shop impulse buy.
  • 2.Buying a juvenile pair for a 60L. Pearls grow tall and need 100L+ with at least 40 cm of vertical room.
  • 3.Stocking with surface-grabbing barbs that hog feeding. A pearl gourami starves slowly in fast-feeder communities.
  • 4.Easy in mature settled water. Avoid nippy tank mates that shred the trailing pelvic threads. Lean toward 100L or more with real tank height for the deep body.

About this species

Pearl gouramis are large labyrinth fish named for the pearl-spotted body. Males flush orange-red on the throat in breeding mood. Adults reach 12 cm and want a tall planted tank.

Similar fish
Same category, closest min tank.
Related fish
Same care level & temperament, similar volume band.
Commonly paired with Pearl Gourami
Other species that list this fish as a safe or "best with" direction.

Plan grid

Key limits are above. Here: pH band, swim level, bioload, and activity.

pH
6 – 8
Bioload
high
Relative to similar community fish
Activity
medium
Flow medium · O₂ medium

Swim zones

Care snapshot

Quick compare before you buy. Not a score of how “good” the fish is.

Planning trait radar for this speciesBeginner easePeacefulnessCommunity fitSmall-tank fitHardinessEnergy
  • Beginner ease78
  • Peacefulness90
  • Community fit72
  • Small-tank fit100
  • Hardiness76
  • Energy54

Numbers are deterministic planning indices from Fishori fields — not a scientific score of your individual fish.

Adult size
11 to 12 cm. Larger than dwarf or honey gourami, with body depth that wants tank height, not just length.
Tank size
100L or more. Pearls are tall-bodied: they want surface length and real height, not a shallow box.

Example setups

Starting points only. Run the pair checker for every fish you add.

Beginner-style peaceful community (planning sketch)

Rough 100L+ 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, Harlequin Rasbora.

Compatibility

Tank mates for Pearl Gourami

Usually safer (engine GOOD): Cherry Barb, Harlequin Rasbora. Conditional (CAUTION — read the pair page before buying): Betta. Avoid (RISKY): Oscar, Tiger Barb. Every name links to a live pair check — the lists are a shortlist, not a stocking plan.

VerdictGOOD

Usually safer

Open a pair page with this fish as the starting point.

VerdictCAUTION

Needs planning

Read the blocking rule on each pair page before experimenting.

VerdictRISKY

Usually avoid

Do-not-stock combinations on conservative hobby rules.

Compare with

Run a real pair check: Pearl Gourami + Cherry Barb

If Pearl Gourami is the wrong pick, try instead
Safer directions when this fish does not fit your tank or experience.

Behaviour and temperament

In the tank

Pearl gouramis are peaceful surface-leaning fish that stay calmer with planted height and gentle midwater schoolers. Males may display and nest but rarely wreck a settled tank. Stress shows as clamping when barbs or bettas contest the film Plan the husbandry before the shop impulse buy.

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: Not strongly territorial, but still needs room so its working space does not overlap the next fish.

Planted tanks: excellenteasy plant ideas

In the glass: typical and warning signs

Typical behaviour
  • A pearl holds mid-to-top water among floaters and rests in vertical planted space.
  • Bubble-nest interest at the surface is normal ownership in warm settled water.
Stress signals
  • Clamped fins under a stale short lid mean air access and footprint failed.
  • Torn fins after tiger barbs arrive mean neighbour choice failed.
Aggression signals
  • Low malice toward peaceful community fish.
  • Males may spar lightly; bettas at the same film are a flare war risk.
When to separate or rethink
  • Remove nippy surface fish before adding another centrepiece.
  • Give height and surface plants before rehoming a 'shy' pearl.

Fish behaviour can vary between individuals and tank setups. Always observe new fish closely after introduction.

Water, food, and grouping

Water, feeding, inverts

Hardness

soft

Diet

omnivore

Pearl gouramis are mid-to-top omnivores that take flake, micro-pellets, and frozen foods at the surface and midwater. Food that sinks past them too fast leaves them thin. Offer portions they can finish under floating plants, keep surface air honest, and avoid frantic competition at the film.

Shrimp & snails

Cherry shrimp and other dwarfs can coexist with peaceful small fish; baby shrimp are food for almost anything that finds them.

Grouping

Pearl Gourami is fine singly or as a researched pair — check behaviour before doubling up.

Before you buy checklist
Tick mentally in the shop. Every box should be true before you pay.
  • Hold 24 to 28 °C steadily on a real thermometer, not the dial on the heater.
  • Aim for pH 6 to 8 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 100L 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 100L minimum tank needs a filter rated for at least 400L/hr turnover and a heater to hold 2428°C reliably.

Plant suggestions

Pearl Gourami does well in planted tanks. Plants compatible with 2428°C and pH 68:

Sources & evidence

Research: partially 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. Trichopodus leerii

    Primary: aquarium size, water chemistry, behaviour, and compatibility (URL verified in upgrade script; recheck if site content changes).

  • FishBase. Trichopodus leerii

    Secondary: taxonomy, distribution, and maximum length in nature; cross-check with aquarium import lines and measured tank parameters.

  • Wikipedia. Trichopodus leerii

    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.

Last reviewed · Curated by Fishori · cross-checked against 3 sources

Spotted an error? hello@fishori.com

Featured compatibility checks

Curated pair pages for Pearl Gourami. Each opens a full verdict — not just a list label.

Common questions about Pearl Gourami

How big do Pearl Gourami get?
11 to 12 cm. Larger than dwarf or honey gourami, with body depth that wants tank height, not just length.
What size tank does Pearl Gourami need?
100L or more. Pearls are tall-bodied: they want surface length and real height, not a shallow box.
Are Pearl Gourami aggressive?
Pearl gouramis are peaceful surface-leaning fish that stay calmer with planted height and gentle midwater schoolers. Males may display and nest but rarely wreck a settled tank. Stress shows as clamping when barbs or bettas contest the film Plan the husbandry before the shop impulse buy.
What is the most common mistake with Pearl Gourami?
Housing pearl gouramis in a short cube without height is how keepers invent posture problems and stale surface air. They need vertical space, clean access to air, and surface plants for bubble-nest behaviour. A low lid-to-substrate cube fights the species.
What fish can live with Pearl Gourami?
The Pearl Gourami profile lists Cherry Barb, Harlequin Rasbora among its safer pairings (engine-checked GOOD). Betta is conditional (CAUTION): workable only with the specific conditions on its pair page. Avoid Oscar, Tiger Barb (RISKY). Run the pair checker for your exact water and tank size before stocking.