You just need to wait. the best thing to do, is to find a dragon in full FW, wait a mounth or 2. If it is eating well then get it. another one of your possible problems with them , might be, that since they are large aND LOOK PREDITORY, you put them with aggressive fish. These things can't hurt a thing, their throughts are to small. mine loves frozen mysis shrimp. The giant I have now, was in a 45 long, but i had to move him because the jd picked on him. He is in the 10 gallon (temporaraly). he is with 1CM convict fry and peacock gudgeans under an inch. doesn't touch them. I am thinking it would be interesting to take a 55, use black sand, and put nothing but neons and dragons in it.