Many fish prefer to explore their new surroundings, nibbling here and there as they would in the wild before taking part in a group feeding. It will eventually succumb to your feeding schedules and if anything the other fish feeding acts as an enticement/excitement. I take it the fish still looks robust and not thinning out? They will normally feed upon marine algaes, sponges, and sometimes coral polyps so as long as you have a varied mix of meaty items such as krill, mysis, cyclop-eeze, clam, fish, etc. and algae such as Nori, spirulina, etc. then you should be good to go. Variety is the spice of life
