Tried my mix today. I seen the Regal take a few pellets of the Spectra. It would not even look at the Mysis shrimp. Lil guy still looks healthy and plump. Still picking at the rocks. I watched it try to get a Hermit Crab out of its shell today, also get a large amphipod out of a rock. It almost acted as if wasn't hungry when I fed. I have a pretty healthy tank so as long as I can see it eating stuff out of the tank I'm not too worried right now. Besides its only been in the tank for 4 days. If by the end of next week if its not eating pretty good I'll get some Formula 2.