What heat lamp do u use? Most people use a spot lamp... but a spot lamp produces to much heat in a too small area causing the carapace to dry out. Since it is mostly happening on top I suggest changing the heat lampThey self soak and I do have a reptifogger for humidity. It stays pretty high in there.
What can I do to stop this so it doesn't progress?
They self soak and I do have a reptifogger for humidity. It stays pretty high in there.
What can I do to stop this so it doesn't progress?
3-4" is WAY too close. The best thing you could do to maintain heat and humidity is to find a way to cover your enclosure air tight. Then setup your CHE on a thermostat to the temperature you want the enclosure to be at. Your lights and CHE should be about 12" from the top of the Tortoise.I keep my house very cold. I do have their heat lamps/lights secured inside about 3-4" off the substrate, otherwise the temps inside get into the 50s and they won't move. They love their light and stay under it most of the day. For night I have an emitter.
I suppose that's the problem. They are getting dried out even with soaks. I'll look at another way to do their lamps and start spraying their shells.