If you want RCS they need a 10 gallon for a Colony.
Yeah, since they breed a lot, I figured they would need a lot of space. I remember when I had a 15 gallon planted tank where I bred RCS and had some rasboras in the tank, too. Okay, I need to stop babbling nostalgically about my old fishroom (back when my dad was in a big house, I had a fish breeding setup in the basement, sadly it didn't last long ).
I have a 10 it looks pretty small. I have one about 2 feet long. 1 feet tall and wide.
Well, anyway, so I guess I'm going with the fishbowl, bare-bottom with a marimo, a glass shrimp (I've had bad luck with snails in the past, so I probably won't get one now that I think of it), and MAYBE some java moss. Whenever I finally get this set up, I'll make a new thread (or bump this one, probably the first option) with some pictures.
Well, my stepmom said I could probably get the bowl and marimo ball next weekend I'm at their house (in about 2 weeks), so I'll post pics when I get it. Hopefully I can get the shrimp, too (since a little fishbowl doesn't really "cycle", and I am aware of the Nitrogen Cycle, don't worry). Either way, I'll update when I start the setup.