I've recently added a mix to my rats' diet; it's fed in parallel with both Oxbow RR and HT2018 (I have rats of varying ages). I've noticed that the smaller seeds - mainly the amaranth grain and the chia seeds - get left behind. I assume this is due to the small size. I've been wondering if there's anything I can do to get these eaten. The mix was designed to be nutritionally complete, and I'm worried that their picking is throwing off the balances. The rats get a baby food mix once a week, can I just throw the left overs into that?