So here's the deal: There are two females at a pet store I go to often that have been in the back of my mind while I look for males for my 10 gallon. They're kept together in a small tank (maybe .5 gallons) and like the rest of the bettas in cups, have no life.
They are so cute though. Especially one that's a little dull, but has lavender in her. I'm in love.

I already named her Bambi, lol.
And since the whole divider thing has not been going well (my tank has weird measurements and I'd really rather not make it myself) I was wondering this:
Well, I know you should get at least 4 female bettas for a tank. Those two get along in that small tank, but when they get more lively in my tank, will they start to harrass each other?
How many females can I keep in a 10 gal? 4 or 5?
If not, I guess I'll have to force myself to make a divider.
Another thing: I haven't been able to find a hood that fits. Like I said, my tank measurements are weird. Any suggestions?