Seriously though, I'd rather see all these threads concentrated in one area, so we don't get people asking the same questions in different forums. Especially when there are several threads going on answering the question in the correct forum.
i feed mine special colombella food from germany supplemented with engevita nutritional yeast flakes and white rice. they devour rapidly both of these to the exclusion of rice. they never touch it but there are some other tiny mite like creatures in my culture that dont do any harm which often congregate on the rice.