With tolerate other stars as long as its not a linkia...dont mix them unless you have more than 6 foot long tank.
I have an orange...he's great... bullet proof! Never had luck with blues though...seems if they are exposed to air in shipping they usually dont make it.
I had a purple w/ orange underside for a year but the huricane killed it I'd Kill to get another one!!!!! that thing was AMAZING!