My larger sulcatas I soak one to two times a week. During a soak this afternoon one of them was really struggling. Back legs were stretched shell was pushed up high. I tried to look under and didn't see anything. Lots of bubbles coming up so figured she was passing gas. A few minutes later I saw what looked like a egg underwater. I freaked out thinking she was laying eggs. She's about the size now to where she could. I reached into grab it and it was a rock hard golf ball sized urate. Poor thing that had to of hurt like hell. I'm sure she's feeling better now. She has a big water tray that she never touches so she has constant access to fresh water. Definitely going to soak at least three times a week from now on.