Depending on how old/big your leo is you might want to try superworms first. They tend to move more and catch the leos attention better than boring mealworms. If you're feeding them from a dish you might want to drop a few in by hand at first so they move and grab his attention then maybe you can try going back to a dish. Keep a piece of carrot or potato in the dish with them (Big enough so your leo can't accidentaly eat it) then maybe they'll be more active.
5 months old...but her tail is lost...attacked by cat...is superworm safe for her? 3 days quit eating...daily she usually eat 2-3 cricket until i want to change it to mealworms...less parasite. i have 5 geckos n 2 of them eat mealworms, 3 of them never interested in mealworms...help me