I have 2 food dishes on opposite sides of the cage. Sometimes they go to different ones, sometimes they eat out the same one at the same time. Never had a squabble. Have one dish for gliderade and they both share that no problems.
Sometimes peeka tries to be a little dominant and when eating Iams, if she finishes hers first she'l run to Boo and try to steal hers. Boo just gives her a swipe and tells her to 'fluffy duck' off in suggie language (loud psstttt noise) lol. I wouldn't say either was more dominant than the other, i'd say peeka reminds me of a child that tries to push boundaries with Boo sometimes, Boo is just very laid back but doesn't take any crap

It works for them x