I've had a red wag platy for about 3 weeks and I've noticed he never seems to eat. At feeding time everybody else comes out and goes crazy but he just swims around seemingly oblivious to the food. He likes to follow my red mickey mouse platy around, who eats like crazy, but seeing his pal eat doesn't seem to give him inspiration to do so himself. It's not that the other fish are stealing his meals--many times I've seen him swim right past flakes and not bother to gulp them down. I'm otherwise not seeing any strange behavior from him; he's one of the more shy fish in my community tank but he still comes out and swims with others. He doesn't look underfed, at least not to my noob eyes when comparing him to my other two platys. So I've been assuming that he must be going back later and getting missed food from the bottom of the tank or something. Should I be concerned, or are some fish just not into feeding time?