Aquarium Forge

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: 7282°F
  • pH: 67.5
  • Hardness: 212 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

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.
Build a plan with Dwarf Gourami

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 mates

Sources

  • 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