When I soaked Zen today I noticed a small stool and white stuff in the water as well. Trying to find camera cord so I can post pictures, but to be honest it looked bit like semen. It was in larger chunks but when i transfered the water into a darker dish for a better picture it broke up. I've heard of things like gray stool being bad, but I have no clue what this can be. I just know it wasn't in the dish when I put her in. Any ideas?