Advice on a Betta--

[Suki Wingy]

My mom has to warm up to the idea first. She's actually thinking about a fishtank for the livingroom. I was thinking 3 cories and a male betta in a 5-10 gallon. (most likley 5) Is that too crouded? From what I've read, 3-5 cories or more is a good number.