Let's face it, dried food is boring... like eating pretzels for dinner every day... Blaaa!
Give a treat like frozen blood worms, or frozen brine shrimp. I rinse my frozen brine shrimp in a shrimp net now because they tend to cloud up the water if you don't.
Doesn't have to be every day, but once they are eating well, they will go after the dried foods with more interest.
Jeff.