Hi I have noticed my star tortoise trying to find white things in the soil since she had a taste of a bit of limestone powder scattered there a few days back . I am unable to find cuttlebone at the moment . I am a new tortoise owner living in india . I do feel like she has a calcium deficiency cuz she was fed only cucumbers for 5 yrs by her previous owner with no supplements. Can I put limestone powder in a bowl in her enclosure for the time being? If yes , is there any particular type or the regular commercial one is edible ?