Halfblack Angel fish not eating

[rz1a]

I bought this angel fish on tuesday. since tuesday it hasn't eaten anything but has only grazed on the live rock. its showing a lot of interest in eating cyano on the sandbed. ive tried all sorts of food: nori, spirulina flakes, prime flakes, misys, different types of pellets and nothing seems to interest this guy. hes healthy and actively swims around but dont know what to do

[rz1a]

ok nevermind. was feeding the fish mysis since theyre used to being fed that particular food close to noon and saw that the angel sampled the food and liked it. didnt go nuts over it but would occasionally stop grazing and nip at the mysis, eat it, and then continue to graze. good sign