pair

[karazy]

i was wondering what the best pair of fish(like male and female) that would go into a 29 gallon(with a 20 gallon sump)

if possible try not to say clown fish, unless its a neatly shaped one(A.K.A. not shaped like occelaris or percula)

right now the only thing i can think of is a pair of bangaii cardinals or a pair of perculas