Welcome to YT!!
There's no need for your two babies to have their own bowl, since they share without fighting.
If you're wanting to switch them to another food, I'd recommend getting some samples first to see if your babies like it.

You can contact the company to see if they offer free samples; otherwise some pet stores carry samples that are cheap or sometimes free.
If you're interested in Canidae, I'd recommend their grain-free ALS forumula. (
Canidae)
Orijen is a food I'd highly recommend (
www.Orijen.ca)
TOTW is a good food which seems to be a tasty hit. (
Taste of the Wild : Home)
EVO (
Evo Pet) and Instinct (
Nature's Variety) are also great foods.
Hope that helps.