I would go to local pet store and purchase a pelleted feed for carnivorous cichlids which are highly palatable, usually more so than feeds made for pond use. Selecting floating pellets that are about 1/4 diameter of the bluegill mouths you are trying to feed. Feed frequently in small amounts. The aquarium feeds are less likely to cloud water and glass of aquariums when you are pushing the filtration system. Freeze dried krill is great when you can get it in small amounts. Sundried shrimp are not too bad as a second choice. Once fish on feed in aquarium, they will quickly transition of pellets in a pond setting.
