I have kept and bred chinese fire bellied newts for more years than I care to remember, and I agree that they are cute little newts.
Im sure you already know the species you have, but if bought from a pet shop they have a habit of calling almost all newts fire bellied.
In which case this article will be of help to you.
Caudata Culture Articles - What kind of Fire Belly is it?
This site is also[in my humble opinion], the best site you can find for care sheets, articles on feeding, breeding, set up ideas etc.