Fish for nano tank?

#1
So im tryin to figure out what other fish to add to my tank. Tank is a 30gal cube. The only fish that is in there now is a small borbonias anthia. I want to add 1 or 2 other rare fish, or some type or schooling fish. But the only schooling fish I can think of for a tank this small is orange lined cardinals. Anyone else have any other options? I dont want anything that is going to dig in the sand either.
 
#2
The Borbonias Anthias may eat most small fish that would do good in a 30 gal. You might try Spotted Cardinals, Bangai Cardinals, but male Bangai become aggressive towards each other when mature special in that small of tank. But the can be kept with female Bangai. Not rare, but I would consider Sixline Wrasse or other small wrasses. If looking for a little more "rare fish" I'd consider Candy or Peppermint Hogfish. If you'd like really rare a Neon Wrasse ( Bodianus sanguineus) would be great!
 
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