I’m new to reefkeeping but once every 3 or so weeks I’ve been giving tinnny pieces of fish to my Duncan and they chomp it up! They’re getting nice and plump and my frag has grown 2 new heads? (If that’s what they’re called?) since September. I also do either a broadcast of roids or AF pure foodA couple times a week but may slow that down now that I have a few fish in the tank.