Calcium once or twice a week, Herptivite once a week. For most species I also like the original Mazuri, 5M21, as a good supplemental food. The Mazuri LS and both of the ZooMed chows are good. Will @Kapidolo Farms sells all sorts of good dried leaf options as well as cactus flour for calcium and other great products.
Tortoise Forum
Tom
Tom
Having said all of that, the best thing you can do is feed a varied diet with a whole bunch of different weeds, leaves, flowers, and grasses for grass eating species.