I am having trouble getting my Lyretail Anthias eating pellets. They eat like pigs on the frozen food but seem to only spit out the pellets and flakes. I have tried adding them to frozen food and slowly decrease the amount of frozen and increase the amount of pellets but it doesn't seem to be working. I have had various anthias over the years and have never had a problem getting them on prepared food. I want to be able to use an auto feeder while I am away so I need them on pellets. Any suggestions?