Care guide
Caring for clownfish
This guide covers Ocellaris clownfish and the other species that need the same care. Ask the seller about anything particular to Ocellaris clownfish.
- Kind
- Clownfish
- Adult size
- About 9 cm
- Smallest tank
- 80 litres
- Water temperature
- 24–27 °C
- Salinity
- 1.023–1.026 SG
- Temperament
- Peaceful
- Reef safe
- Yes
- Care level
- Easy
- Where they come from
- Usually aquacultured
- CITES
- Not listed
Aquacultured clownfish are hardy, long-lived and full of personality, and almost all sold today are tank-bred. They suit beginners and can live 10 to 20 years.
Pairs
Clownfish live in pairs; the larger becomes female. Add two young fish together, or a pair the seller has already formed. More than two in a small tank often fight.
Anemones
Clownfish don't need an anemone. If you add one, wait until the tank is mature and stable; bubble tip anemones suit many species.
Species differences
Ocellaris and percula clowns are the most peaceful. Maroon, tomato and Clark's clownfish grow larger and can be aggressive.
Further reading
General information to help you prepare, not veterinary advice. Every animal is different: ask an experienced vet about yours. Reviewed by PerfectPal on November 2, 2026.