Dwarf Gourami: tank size, group & compatibility data

Planning profile for Trichogaster lalius.

curated core

Curated StockingLab core profile.

Planning profile

Adult size
~8 cm / 3.1 in
Reference tank
70+ L / 18.5+ US gal
Social group
single / context-dependent
Swim zone
Top
Temperament
Territorial

Water window

Temperature
24–28°C / 75.2–82.4°F
pH
6.0–7.5
Relative waste
1.00×
Activity
0.75×

Stocking notes

A colorful centerpiece fish; males can be territorial and should not be crowded with similar labyrinth fish.

For planning, StockingLab models Dwarf Gourami at its approximate adult size rather than the juvenile size commonly seen in shops. That matters because space use and waste production can change dramatically as fish mature.

What the calculator checks

  • Whether the tank's usable volume is below the 70 L / 18.5 US gal reference minimum.
  • Whether the selected group is below the planner's typical 1 fish social starting point.
  • Whether target temperature and pH sit inside the planning range.
  • Whether prospective tankmates create predation, fin-nipping, territorial or water-overlap conflicts.
  • Whether too many fish accumulate in the same top swim zone.

Before buying

Use this profile as a shortlist tool, not as a substitute for a dedicated care source. Confirm adult size, diet, sex ratio, habitat structure and locally relevant water conditions before purchase.