For my sulcata I have used a grass mix that I purchased. Here is a link to a site, not sure if this is where I got mine but it's similar. http://www.turtlecafe.com/showproduct.pl?prodid=33
Hope it helps.
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0.0.4 Destert Tortoise
1.0 Sulcata
1.1 Three Toed Box Turtles
3.3 Western Hognose
1.0 Albino Western Hognose
1.0 Corn Snake
0.1 Anery Corn
0.0.1 Green Tree Frog

