i have been letting my hatchlings graze on grasses, dandis, clovers ,and hibiscus trees 4 days a week, and lately when i bring them inside, their mouths are dirty and look like they are wearing dark almost black lipstick.. it comes off when i wash them with a q-tip but they hate it when i do that.. i was wandering if anyoneelses sulcatas get dirty mouths after grazeing outside or is it something i need to get checked out at the vet.. they are both eating well and gaining weight and havent lost any weight, or any appetite..