My three discus have posed a problem. Since they joined my happy home, they have refused to eat anything but frozen blood worms and frozen brine shrimp. I have tried them on Shrimp bits, enticed them with freeze dried tubifex, cajoled them with Omega One First flake... they turn up their noses at all of these and then go and sulk. I need them to get something resembling a balanced diet. Can anyone suggest a means to get them to eat something besides there favorites? I tried them on a two day fast to rid them of some of their food snobbery, but they didn't waiver for even a second!