ive found that when you feed your roaches like everyday the become picky like dogs and cats are...however if you feed them like once or twice a week which i plenty for a hisse colony they will eat pretty much everything.....i feed mine exactly the same stuff i feed my beetles, and my meal worms....which is pretty much anything i have on hand which is usually carrots and random letuces but they have readily taken my leftover brockly, crickets, lettuce, green beans, dead meal worms, baby pine trees, and anything else i put in with them.....lol