Boxfish

[Fishtank55777555]

What’s the minimum tank size that I can get away with for a cubicus box fish. This world be the only fish in the tank .

 

[redfishbluefish]

I've always used Liveaquaria for advice on tank size. Accordingly, a 125 gallon would be just fine for a Cubicus Boxfish (Ostracion cubicus). Full grown, they are a foot and a half long.