At this point I'm buying copepods and also was told they'd benefit from Roti Feast so I got him a bottle of that too. The Hammerhead is coming back slowly. It's about double the size it was when I moved it. It's still 1/2 as big as when I got it but it seems to be improving daily. The other corals are doing great, vibrant color and opening up without additional iodide and calcium.
Thanks to everyone for their help saving my coral!