TomR has 2 Majestic angels, not Emperors/Imperators. Was just there tonight with Snappy
Large angels need some food with sponge in it, because sponge makes up the bulk of their diet in the wild, I believe.
My Queen angel & Koran angel were raised mainly on Nori sheets & PE mysis.
I have also read several accounts (yes, including from the creator of the food) that NLS pellets are also very good for raising healthy large angels. (New Life Spectrum). I've been feeding this to my fish, & they really like it & stay nice & fat & colourful on NLS pellets.
Anthony