REALLY Weird Fish for 20G Long?

[Scottyhorse]

Thinking of setting up a 20G long tank. I'm going to The Wet Spot Tropical Fish soon and I love their selection of fish. I am not thinking of doing a typical community tank, I want REALLY weird, odd, not common fish..

So far this is some of the different options:
Tetraodon miurus
Carniotetraodon travancoricus x 5
Hypseleotris compressa PAIR
Brachygobius doriae
Chlamydogobius eremius
Pantodon buchholzi
Blue Chameleon Badis
Betta albimarginata
Betta channoides
Betta imbellis
Barbus hulstaerti


Anyone have any other suggestions?