honestly russ you want a nice tank so id scrap the common fish idea like the tomato clown and fire fish and damsel, since you have a rimless tank i doubt your going to cover it so avoid jumpers if you can.
sounds like you want movement
i love the ember blenny suggestion, love the kole tang suggestion,id do a designer pair of clowns maybe some snowflakes and i would do a anthias maybe a bartlett( i love these guys )
i always pick fish for jobs so a mandarin/scooter is a must have for me , same with a wrasse in which case i love leopards and a black leopard would fit your tank fine provided you can find a place for him to sleep, they are also tricky to get eating but much easier then other leopards are.
cheers
denny
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