Just want to second Sparkys remarks. Mine has taken to frozen food as well. I need to target feed mine though. They other fish are a little too fast for him.
Not everyone is so lucky. Sometimes they do not take to prepared foods and their natural diet is pods
. How large is your tank, how is your pod population and how old is the tank? They tend to do better in a more mature system with an established pod popultation.
try setting some frozen food by him and see if he takes it.
Also they are not a blenny ( I know the LFS
's advertise them as such) but a dragonette.