Like zoo asked, you have to keep going back to buy more live food from the LFS that says that they won't accept anything else? Sounds like a great way for them to keep their customers spending money there (sorry if that sounded rude, but it's a classic line that keeps customers coming back and spending money at their shop). I've never met a jag that wont switch to prepared food, IME. You shouldn't have to starve it for too long either before it eats.
Sorry for the derail zoo. All your fish look great. I can't wait to see them in the bigger tank. I'm in the process of setting a bigger tank up right now too for my guys. Best of luck with the whole process.