Mine eats anything including formula one flake! good luck but beware the more you feed it the faster it will split , at least thats happens with mine which it's on #10 already.. Yilkes.. The problem with that is that they embed in your rock and it's nearly impossible to remove them (unless you get it within a day of splitting before it has time to settle down) they can take over your tank really quickly and they sting any corals around them. :grumpy: