I got my dwarf lionfish on Monday, so it was 6 days ago. I bought dozen small guppies and 4 ghost shrimp on Tuesday. I used my fish net to fed my lionfish, and he reconized the net for giving food. I knew I had chance to feed him frozen food when I see him happily swin inside the net to eat live food.
So today, Saturday, I used my krill and he did take it but he spitted out right away. I was very dissappointed but I tried with frozen silverside. I cut it very small, size that easily fit in to his mouth, and placed it inside the net. My lionfish swimmed inside the net and took it right away.
I was so happy tonight. I wanted to make sure so I tried it again later and surely it worked.
I used feeding prong and homemade feeding sticks, none of them work.
Use the net. Try with live food for few days. Let him know that net is for food. He'll get the frozen food.
I am going to try on krill again tomorrow but if he doesn't take it, I will throw it away and keep using silverside.
Goodluck.