Hey,
I've had mine for about 18months now and it eats everything and anything. Like NMreef, I feed mine Seaweed selects, formula 1, brine plus, as well as flake (Spectrum Thera & Wardley spirulina plus). It chows all of that plus cruises the tank looking for snacks.
Thinking back, it took a couple days to get it to eat. That kinda bothered me, but it's doing great now.
HTH,
Dan'l