I am sorry if I am posting this in the wrong section, I have never used this website. Please help, my 2 year old Marginated tortoise has a white slightly yellowish bump on the bottom of it's shell does anyone know what it is or if it causes any harm?
Hello and welcome. The photos are a bit blurry, but I think I can make out what you are referring to. It looks like some sort of minor shell anomaly. These things happen sometimes, and in most cases it is inconsequential. Let's review your outing to see if we see anything wrong.
What size and type of enclosure? Indoors or out?
What substrate? How thick and how damp?
What are your four temperatures? Warm side, cool side, basking area, and over night low?
What heating and lighting equipment?
What type of UV bulb?
What do you feed the tortoise?