The Butter Hamlet, Hypoplectrus unicolor, is a beige hued Hamlet found mostly in the Caribbean Sea. Hamlets are often not found in local fish stores. They are reef safe but semi-aggressive towards smaller fish and invertebrates, so monitor the size of the Butter Hamlet's tank mates. They will eat a meaty food diet and rarely grow over 6 inches. The Butter Hamlet, like other species of colorations of Hamlet fish are beautiful additions to most tanks if paired with proper tank mates. It is recommended that the Butter Hamlet has ample space to swim freely in the tank, while also have various rocks and crevices for it to hide. The Butter Hamlet may shows signs of territorialism, so it may be wise to separate the Butter Hamlet from other Hamlet species.