Yes, Wheat grasses are good for chinchillas. This contains chlorophyll, vitamins, minerals, enzymes, and amino acids. When compared with malt, wheatgrass are longer growing. Only a limited amount of wheatgrass should be give to your chins. Like oranges, the acid content in the wheatgrass is also too high. It will make your pet sick if feeded too much. Feeding them a small amount of wheat grass will keep your chinchillas healthier.