angelfish

I am new to saltwater tanks (and aquariums in general). I've been told that white poop signifies internal parasites. Well, I just noticed that my dwarf flame angel has white poop hanging (see pic) and I have a juvenile clownfish which hasn't eaten in two days. Can someone with more experience...

I have a 14mth old angelfish. I have discovered 2 white bumps around his eye. I'm wondering if he is going to be okay and if there is a good treatment for him as I am concerned now that his belly has gotten bigger