Thank you for the lengthy reply, gave me alot of new info. I'll probably just go with 1 Rosy for now, I don't plan to do any breeding. Just thought it'd be cool to have a pair, but I definitely don't want to put them at risk from each other.

What would you suggest for alternate feeding area? I'm probably going to get a 20 Gallon tank to start with as the habitat, what should I purchase to feed him[or her] in?