I've been trying to give my girls more fresh food lately. They are also on lab blocks which are supposed to be "nutritionally complete" but I find it boring and I'd like them to get more of a variety. I'm just wondering how much is too much. They are still young and don't seem to eat a lot (but not underweight). I've been feeding them all their fresh foods at night for dinner. Should I be leaving the dish in overnight, until they are done, or just for a few hours? Should I alternate fruit and veg or all at once? Also, how much starchy foods is too much? Should it be a few noodles and pieces of bread per rat? And how often is ok? I know I'm asking a lot of questions but I'd just like them to have as varied a diet as possible without overfeeding or making them sick.