I wouldn't put a gourami into a 10g. They can grow to 4-5" and that's far too big for a 10g. Perhaps a dwarf gourami. Powder blue dwarfs are beautiful.
Anyways, I would also consider mollys, platys, and cory catfish.
cinnamaldehyde said:Ooooh! Endler's livebearers!!! I'm a bit biased as I find them to be extraordinary fish, and I have some in QT right now.
Other than those, maybe guppies? Not sure if you're a fan or not, but they always catch my eye with their colours and how they seem to flutter around the tank.
Some corydoras catfish might go well, too, if you chose a smaller variety. And as someone mentioned, teeny tetras are always popular.
Just a sidenote, but all cories are pretty hyper fish and need a pretty large tank footprint. I personally wouldn't choose those for my ten gallon. Again, that's just me.
Courtesy of Dakota's iPod.
George9 said:I wouldn't put a Cory in a ten gallon anyway, they need a bigger tank right?
Endler's livebears are really colorful. Guppies are good. Glo-fish (genetically modified zebra danios) are widely available and bright red, orange, or green. If they interbreed, you can have multicolored danios.
Currently, I have 6 golden white clouds in a 10 gallon. They're a yellowish/orangish/flesh color and really pop.
As others have said, a small school of neons or a dwarf gourami or a betta would be comfortable in a 10 gallon.
You can also add a few shrimp, which can be fun to watch.