My fish don't go so much for the freeze dried stuff, but LOVE the frozen bloodworms and brine shrimp.
Another thing they go ga-ga over is Wardley's Premium slowly sinking crumbles. I think I got that name right. They love it. Some of it even manages to fall to the bottom for the cories.
Tell us what fish you have so we can give you the best advice possible.
Most fish love frozen brine shrimp and blood worms. Some go after dried tubifex worms, but they'd much rather have other food. There are also vegies and algae wafers.