So you feed right in their regular cage/tub/enclosure thingie? Do you have any problems with them striking toward your hand when you reach in to take them out at other times?
I had read to have a separate "feeding" place, so they don't associate eating with their main "home," and so they won't "mistake" your hand coming to take them out, for food. True? No?
I'm a total noob...sorry if this is a dumb question.
I do not use tubs, and I feed in a separate container so no substrate gets eaten.