I can vouch that the minnows are a huge hit!! The Ponds love them, only complaint is they are hard to find, the one location I can get them they are $4.99 and the supply fluctuates.
It's pretty good stuff, those FD Vital Essential treats. A couple indy stores I buy from started carrying them a few months back. I've used both the cat (and dog) treats for the cats. They like the rabbit and also the duck. I was thinking of trying the green tripe at some point.