I feed nori everyday and the yellow tang is always all over it. The chromis school in the open and the tang hides in one rock near the back. tank temp stays around 78-80 as I do have a 1/3 hp chiller. Blue tang likes to hide on the side of my wavebox but when she does come out she pigs out on the nori and mysis. The tangs were introduced before the chromis but I did get them around the same time so maybe I shouldve waited a bit longer. Im also going to try and feed at random spots as I always pour food into the box so they all congregate in front of it. Thanks again for the input. I really appreciate it