You can use scallops, I am just saying clams are better. I also target feed every day and always have. The best is live worms. The fish doesn't care that you can't get his favorite food, he just wants it like a 2 year old.
The feeding tube that peter posted is also great. I use feeders for everything. But worms and clams are their favorite and most natural food. If you dive with them in the sea, they live on mostly worms. Earthworms will also work. But if he doesn't eat anything, it's not the food, but something wrong with the fish,.