I know how often to bathe a Tortoise and I bathe mine quite often about 3 times a week. I feel really bad though because he hates baths. He is a 3-4 year old Hermann Tortoise. I am pretty sure that I have the temperature right. It is pretty warm but not hot. I also replace the water every 7 minutes (Due to feces, urine, temperature). I give him usually a 25 minute bath. I also spray his greens. I use reptisafe in his water bowl and when I bathe him. It is never above his head. It is deep enough that he can dip his head under if he wants too though. I can tell he hates it because he always tries to climb out. Any responses are much appreciated.