box fish? They get huge though dont they? They are my dream fish thoughAs everyone else has said clowns are always a good choice. Stay away from tomato varieties and maroons. They are pure bullies. Royal Gamma, fire fish, six line wrasse, flame angel, box fish, magnificent fox face, blue chromis, any cardinal fish. All good reef fish. People will disagree with flame angels because they are haters…lol. Mine is 2 years old and never touched a coral.