"Non-mated" fish pairs?

[Mugg1977]

In developing and constantly researching the stock-list for my in-progress 120 (4x2x2) fowlr, I keep leaning towards wanting a species that can be kept in pairs. I have only been able to really find one species that can likely be kept (throughout the duration of their lives) as a "non-mated" pair, the two barred rabbit fish.

Are there any other species?

Thanks!

 

[returnofsid]

I'd post this question in Lee's Marine Fish discussion forum. He'll know!!