so i have had my discus for about 6 months now, 4 of them in a 55 gallon, they all around 3-4 inches, but i have noticed that they will not touch anything but live blackworms, every kind of frozen food gets spit back out. i have tried raising the them to 89 F and not feeding them for a week, i have tried crushing the blackworms, and the bloodworms to make a mix, i have tried to feed nothing but blood worms for a full week. they will not touch anything but black worms. in your experience, how did you get your discus to eat other foods. i feed the black worms from a tube with a syringe now they see my hand in the water, they know its feeding time. im running out of blackworms, and i love my discus, i am afraid that if i cant get them to eat other foods, they will die. i have had plenty kinds of fish, rare and not rare, hard to keep to the easy, but these discus are really working my mind, its like they dont eat anything else because they know it makes me mad. any one with incite please help.