Hi guys, I noticed an unusual mark on my sulcata's shell. It was only one mark, I checked on other places but found nothing. I soak him every morning for 30 minutes, he's almost 1 year old. The enclosure temperature and humidity are normal (closed enclosure; temperature 30-33', with a cool spot etc. Humidity a bit low lately, around 75%, but usually it was 80-90%. The substrate is cocobark). He acts normal (no loss of appetite, pooping and peeing regularly). So nothing concerning besides the mark.
Is it normal, or do I need to worry?
Is it normal, or do I need to worry?