I have a large enclosure, somewhere around 40-70 feet by 20-30 feet that I am presently renovating to keep Red Eared Sliders in, of which I shall soon receive four adults. After pretty extensive research, I believe I know how to keep them in optimal condition, though of course tips are welcomed. About a third of the enclosure will have 3-4 small ponds, where the turtles will spend most of their time, being nearly completely aquatic. My question arises here. I have the option to get multiple African Spurred tortoises. They are very large, and extremely long lived (though not aggressive.) I would probably get two, though I may not get any as of yet. As two thirds of the enclosure is empty, with only grass, and I kept the tortoises there overnight, probably letting them wander the yard in the daytime. If I keep them together, will there be problems? I'm heard rumors about disease. another issue is if the tortoises would burrow aggressively enough to disrupt the turtle ponds. I don't believe they will be directly aggressive to each other, as sliders only fight turtles that are smaller or equal size in the case of males battling, and the tortoises are notoriously easygoing.