Yes, unless you want to breed them. Tortoises would probably bully each other regardless if both were females or both males or a male with a female. If I ever decide to have more than one I would have at lease 3 & up, so there won't be just one dominate over the other alone....& plenty of space to hide away from each other.My tort is perfectly happy with being alone although I did get him some rubber duck friends a while back