Can cardinal tetras and angelfish live together?

Yes

Cardinal tetras and angelfish can share a tank. Their water needs overlap and neither is known to bother the other.

Cardinal tetra Angelfish

Why

  • Their temperature and pH ranges overlap comfortably, and neither is known to nip, chase or eat the other.

What each one needs

Cardinal tetraAngelfishBoth
Temperature73–84°F (23–29°C)76–84°F (24–29°C)76–84°F (24–29°C)
pH5.0–7.06.0–7.56.0–7.0
Minimum tank20 gal (76 L)29 gal (110 L)29 gal (110 L)
Keep at least61
Adult size2 in (5.1 cm)6 in (15.2 cm)

The smallest tank for both

A 29 gallons (110 L) tank holds 6 cardinal tetras and 1 angelfish at about 48% of its stocking limit, which leaves room for more.

Other tank mates for cardinal tetras

Other tank mates for angelfish