1 fish. 30 gallon cube.

[DoubleM 10]

i cant beleive it has not been mentioned. i dont recall reading in here that you wanted to keep corals. Im a huge fan of mu Fuzzy dwarf lionfish. i have 3. 2 of them are in a 55 together and they NEVER stop begging me for attnetion when im their. when im gone everyone tells me the just "hang out". they are by far my fav fish. one is dark red. another is brown and white. and another is yellow and brownish red lol
great fish IMO

matt

 

[heisenberg]

This, you must get thissssss!
http://www.youtube.com/watch?v=S2mryRzZeUQ

What is that??

i cant beleive it has not been mentioned. i dont recall reading in here that you wanted to keep corals. Im a huge fan of mu Fuzzy dwarf lionfish. i have 3. 2 of them are in a 55 together and they NEVER stop begging me for attnetion when im their. when im gone everyone tells me the just "hang out". they are by far my fav fish. one is dark red. another is brown and white. and another is yellow and brownish red lol
great fish IMO

matt

I do keep coral and want to continue keeping coral.

Pygmy cherub?cute little guys always swimming around looking for food.

How are they with coral? Nippers?

 

[SwampyBill]

+1 on clownfish or fu manchu lionfish. Clowns have great personality & facinating behavior in pairs (& you could do a pair in a 30 gal, IMO). Fu manchu lionfish can be difficult to get to eat, but are waaay cool when you do. How about a coral beauty dwarf angelfish? They're incredibly colorful.

 

[treylane]

http://www.lionfishlair.com/ourfish/multibarbus.shtml

 

[SushiGirl]

I really like the Starcki damsel, the Blue & Gold, the Yellow, and the Azur.
The Blue Sapphire & Ocellate & Immaculate are all extremely beautiful.

Dangit, this makes me want another small tank to keep a damsel in, cuz they're just so darn pretty. It's a shame they're so mean! I had a blue devil in a tank by itself with a giant hermit for a few years. That thing would get me when I was cleaning the glass. We'd play tag. She didn't like it when I flicked her with my finger once though, turned almost black and hid for a good 10 minutes before taking another swipe at me LOL.

 

[walt13]

+1 on flame hawk. great personality and begs like a dog when you approach the tank. I have also liked the subtle beauty of the green chromis. Very under rated.
Walt

 

[Cantonesefish]

Actually lionfish are very compatible with corals, you just have to watch your bioload, and since it's the only fish you don't have to worry about it eating other inhabitants

 

[velvetelvis]

+1 on flame hawk. great personality and begs like a dog when you approach the tank. I have also liked the subtle beauty of the green chromis. Very under rated.
Walt

Green chromis are beautiful, but a 30 doesn't give them much room...also, the OP wants to keep a single fish. But the flame hawk sounds like a good idea.

 

[th.one]

If I had to choose one it would be the Orchid Dottyback (Pseudochromis Fridmani). Hardy, entertaining, and amazing color.

 

[nathang]

+1 on dwarf lion, or midas blenny-cool swimmers, great personality