I just kept putting mine in there every day until they would eat them (I would scoop out all of the ones they didn't eat) Mine just got hungry enough that they eventually went to the top of the surface to see what was up and now that is the main part of their diet. I feed them floating cichlid sticks and they look healthy as ever and have some amazing red on the bellies. I am going to try out some floating arowana pellets next.