Wow!! I'm going to have to see if my LFS can get some of these. I haven't seen half of them like the frozen rotifers, mussels and plankton. Living in Canada I wonder if some of these are prohibited which is why I haven't seen them! That's an amazing selection!!
Like @Jekyl said, variety is good.
I also have 3 tanks with different needs. The predator tank gets more of the meaty foods and less of the veggie stuff. They all get some of everything though.