Hiya
Maisie's vary a bit. They are normally yellowish, slightly green tint (lol), and normally very soft, but not runny. They are also quite thick. I had to let the doctor know what they were like after she had been on it for just over a week, and the doctor just looked at me funny! So I still don't know if its 'normal'.
How long has he been on it? Maisie had a couple of really green ones when she first went on it!
HTH. Xxxx