How pale are we talking about? Compared to what? I’ve found eat mutants to be pretty pale. I also recall egl-8 mutants to be pale as well, but I don’t know if that’s a defecation or eating defect (or both).
it does sound like a generic malnutrition phenotype. clear mutants are worth looking at just because they look so neat on the DIC. but, they actually have a dark intestine when you look them on the dissecting scope.