: the last of the 20 day names of the Maya calendar that with its associated numbers 1 to 13 in a peculiar order (13, 11, 9, 7, 5, 3, 1, 12, 10, 8, 6, 4, 2) designated the 13 katuns of a series
Not to e a burden, but gravel isn't the best choice because with a tiny little tort like that, even if he/she eats a little bit it could clog up his/ her intestines. So changing the substrate to coco coir will work better