What Size Tank Does a Pearl Gourami Need?
Minimum tank: 30 gallons
A Pearl Gourami (Trichopodus leerii) grows to about 4.5 in (11.4 cm), so the practical minimum is a 30-gallon aquarium. A pair or small group is typical, so leave a little extra room for tankmates.
| Single fish or pair | 30 gallons |
|---|---|
| Comfortable group | 30 gallons |
| Community setup | 40 gallons+ |
Bigger is easier: more water dilutes waste and holds temperature and pH steady. See stocking ideas for a 40-gallon tank or try the stocking calculator.
Frequently asked questions
What is the minimum tank size for a Pearl Gourami?
At least 30 gallons.
Can a Pearl Gourami live in a smaller tank?
Going under 30 gallons stresses the fish, worsens water quality and shortens its life — not recommended.
More on this species: Pearl Gourami full care guide · tank size · temperature · pH & hardness · tank mates