Oh it's not that big, maybe like, 15gal
I think that's not big enough for them by a long shot. I'm hoping to find someone who'll want to swap their 4ft for my 2 2fts, but I won't be holding my breath.
They seem to do well in the tank, initially bullying the Fighter, then the Fighter bullied back and now they seem to get along well.
Ideally, i'd keep them in a 4ft tank with some other small fish like Neons and Balloons.