What Size Tank Does a Angelfish Need?
Minimum tank: 29 gallons
A Angelfish (Pterophyllum scalare) grows to about 6 in (15.2 cm), so the practical minimum is a 29-gallon aquarium. A pair or small group is typical, so leave a little extra room for tankmates.
| Single fish or pair | 29 gallons |
|---|---|
| Comfortable group | 29 gallons |
| Community setup | 39 gallons+ |
Bigger is easier: more water dilutes waste and holds temperature and pH steady. See stocking ideas for a 29-gallon tank or try the stocking calculator.
Frequently asked questions
What is the minimum tank size for a Angelfish?
At least 29 gallons.
Can a Angelfish live in a smaller tank?
Going under 29 gallons stresses the fish, worsens water quality and shortens its life — not recommended.
More on this species: Angelfish full care guide · tank size · temperature · pH & hardness · tank mates