Glad to hear you got them home ok. I agree, give them a few days (they should eat almost anything they can fit in their mouths), but if you'd like to try some foods to get them to eat, here's a partial list of things that your pair have eaten before (Like crumbletop says I try to give them a variety of things for health and so they eat whatever they are offered when they move to other tanks):
small PE mysis
cyclop-eeze (like Angela says, I use the powder)
frozen enriched brine
frozen formula foods (ocean nutrition and homemade)
new-life spectrum
vibragro
marinegro
otohime
I'm not a big fan of flake foods (and neither are the fish!), but they should eat most any "crumble" diet. Hope this helps!
Matt