hi i need some advice really. i have had a hermann tortoise called Woody for about two years now, i have just expanded his living space to four foot, but he is looking a little bit lonely now so i would like to get him some more friends. i was just wondering if they had to be the same species or can i have a few in there. i went to a pet shop an he had hermanns and redfoots together i asked if they was ok to do and he said it was fine i just wanted a second apinion. Lastly what is the idea amount of tortoises to have in a four foot viv i would like four or five over a period of time. hope to get some answers soon many thanks matt.