IMO feeding fruits has to be done carefully to avoid attracting flies to your colony. If doing so, just feed small amounts that will be consumed overnight. Vegetables can be fed but should be fed the same way and replaced daily. Dry items like oatmeal, cherios, etc. can be left until consumed as long as dry.

Supply water with cricket gel or a wet cotton bowl (dechlorinated water) changed no less than every couple days. Repashy's Bug Burger is good food but more expensive option than those mentioned previously.

Have never used it; but from reading in cricket threads, those Fluker's Orange cubes are reviewed as not great to bad. Good luck !