Poop

[h00blah]

Yes, I use a screen top. The humidity ranges from 70 to 80 percent :-)

What are you using to measure that humidity? Kinda weird that it's so high yet he's soaking. Soaking almost every time is a sign that something is wrong. These spots you mentioned could possibly be related. It might be causing discomfort. Possibly scalerot? Definitely get us some pictures of that