Dwarf Gourami
Trichogaster lalius
Quick Facts
- Adult Size
- 3.5 in
- Minimum Tank
- 20 gal
- Recommended Tank
- 25 gal+
- Temperature
- 72–82°F
- pH
- 6–7.5
- Hardness
- 2–12 dGH (Moderate)
- Temperament
- semi-aggressive
- Schooling
- Solitary
- Lifespan
- 4–6 yrs
- Diet
- omnivore
- Care Level
- easy
Overview
A colourful surface-dweller with a labyrinth organ. Males squabble and the species is prone to dwarf gourami iridovirus — buy from clean, reputable stock.
Tank Requirements
- Minimum footprint: 20 gallons; a 25+ gallon tank gives real swimming room.
- Preferred swimming zone: top of the water column.
- Happy alone or as a compatible pair; avoid crowding with conspecifics.
- Care level: easy.
Water Parameters
- Temperature: 72–82°F
- pH: 6–7.5
- Hardness: 2–12 dGH (Moderate)
Stable parameters matter more than perfect ones — aim for consistency before chasing an exact number.
Temperament
semi-aggressive
labyrinthsurface-dwellerterritorialdisease-prone
Feeding
An omnivore — offer a staple flake or pellet plus regular frozen or live foods (daphnia, bloodworm, brine shrimp) and some vegetable matter for balance.
Tank Mates
No outright-compatible species in our current database — check individual pairings with the compatibility tool.
Fish to Avoid
- Ember Tetra — Occasional chasing or fin nipping is possible.
- Celestial Pearl Danio — Occasional chasing or fin nipping is possible.
- Nerite Snail — Occasional chasing or fin nipping is possible.
- Chili Rasbora — Occasional chasing or fin nipping is possible.
- Pygmy Corydoras — Occasional chasing or fin nipping is possible.
Recommended Tank Sizes
Standard tanks at or above the recommended 25 gallons:
Stocking Considerations
- Start from a 20 gallon minimum and plan the full group size before you buy.
- Activity level is low, which affects how much of the tank it uses and how much it adds to the bioload.
- Zoning matters: this species lives mostly in the top zone, so choose tank mates that occupy other levels.
Compatibility
Compatibility depends on tank size, water chemistry, temperament, and adult size. Run a full check against any species in our database.
In-depth guides for Dwarf Gourami:
Check Dwarf Gourami tank matesSources
- FishBase(Scientific Database, accessed 2026-09-20)
- SeriouslyFish(Specialist Publication, accessed 2026-09-20)
- Practical Fishkeeping(Specialist Publication, accessed 2026-09-20)
- Aquarium Forge editorial guidelines(Editorial Interpretation, accessed 2026-09-22)
Data reviewed: September 2026 · Data version: 2026.11
Editorial note: Minimum tank recommendations may vary by source and husbandry approach. Our figures synthesise the sources above for planning purposes.
Related Tools
Last reviewed: · Data version 2026.11