Timothy hay is a staple food of many tortoises, including my juvenile Aldabra. Rehydrated hay chips are ~70% of her diet. We initially tried Kaytee brand, for lack of better options, but have since discovered Farmer Dave's Pet Supply (who also sell through Etsy).
Dave's product is more green, fragrant and fresh (presumably). Unlike the Kaytee brand cubes, it doesn't contain alfalfa. You can see the difference below; Kaytee on the left, Dave's on the right...
Dave's product is more green, fragrant and fresh (presumably). Unlike the Kaytee brand cubes, it doesn't contain alfalfa. You can see the difference below; Kaytee on the left, Dave's on the right...