Gomez passed some hard urates today, a chunk about the size of a pencil eraser. He's a 6-inch CDT who mainly lives outdoors on a dirt substrate, gets soaks 2-3 times a week, has a water dish which he walks through but rarely drinks from. His diet is mainly grasses, weeds and greens, hibiscus leaves and the occasional flower. He doesn't eat spinach, does get kale, though, and some other greens which I understand have oxalates. Is this apt to be diet or hydration related? Should I change something about his routine? He's active and healthy seeming otherwise.