Dragonettes are beautiful, but they are a special needs fish as they slowly eat constantly. Pods
have little nutrition, so they eat thousands of them. There is also no guarantee that one trained to frozen foods won't revert back to pods
There are other interesting foods some will accept, like live worms, live brine shrimp (in a feeder) or even some fish roe, like prawn or flying fish (Chinese food store). All these are easier to deal with than raising pods
If you are dedicated, it can be done. But one lapse and you may loose the fish. Some tanks can produce enough pods
naturally, but most can't produce enough, especially if other species like wrasses are in competition with the mandarins.