Ok Kitana’s idea isn’t wrong in theory, but it does use up more data resources. My idea in theory allow you remove all pets to make room for new pets without increasing the data storage, but allows you to keep the appearance should you like to go back. You won’t have the pet any more but say you wanted to use it again you could without having to go retame the pet. You still keep the same stable space. But would be able to have more pet appearances available.