Young yellowtails can be tough.
If you can get him eating ANYTHING, feed it to him. (freeze first...they should take f/t as readily as live and you don't want to worry about parasites)
If he likes lizards...then try secnting a f/t pinky with lizard blood. Eventually, you'll get him over to unscented in this fashion.
I have produced eastern indigos, TX indigos and this year for the first time, yt's.
Like steve...I find eastern indigos take to fish or fish scented pinks...but yt's are another story. A few took pinks rigt away, but they were they exceptions.
Very few of mine have liked fish. I have a bunch going well now on chick-scented pinks (I smear some blood from a f/t chick and a couple feathers on a pink).
A couple more are eating snake-scented pinks.
Trouble is...one snake may take to one scent and refuse all others...and each baby can be different.
Things to try for scent manipulation:
- Fish of different types
- lizards
- snakes
- frogs
- chicks
Good luck.
and let us know what ends up working!
Dean