I feed ours LRS frozen food (fish frenzy or reef frenzy) and nori.
It wouldn't eat the nori until very recently (about a year in the tank), so don't be too surprised if that gets ignored. Having some herbivores around to demonstrate what the nori is for will help with that.
Switching to LRS from spirulina enriched brine and mysis cleared up some HLLE that the fish had when I got it.