I have two cockatiels, which are both different types. Halo is a lutino and Friday is a cinnamon. I purchased them at Christmas 2020 but they don't seem to get along very well. Both birds are very social to me, but even though they have been living in the same cage, day and night, they don't get along. I am hoping for them to breed, or at least become friends. I know that sometimes they do get along, but not very often. Please give me advise on how to make them get along.