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Yellow boxfish — AI illustration, not an ID reference

Yellow boxfish

Ostracion cubicum

FishSaltwater

Care level: Demanding
Temperament: Peaceful
Reef safe: With caution
Minimum tank: 600 L
Maximum size: 40 cm
Temperature: 24–27 °C
pH: 8–8.4
Diet: Omnivore

Good to know

Outgrows most home tanks
Palytoxin risk — wear gloves
Preys on shrimp and snails

Related species

Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.

In the BlubHub app you link your inhabitants to this database and see the care info next to your own water parameters.