In nature,
Schlumbergeras (Schlumbergera) (common names Holiday Cactus, Christmas Cactus and Thanksgiving Cactus) as well as the
Easter Cactus (Hatiora gaertneri) are either epiphytes (growing on trees), or lithophytes (growing on rocks) where their roots receive excellent air circulation. When grown as a container plant, they do best in a light, airy potting medium and the soil should be consistently damp throughout, never overly wet and never overly dry.
In my opinion, even a cactus/succulent soil should be amended with extra perlite or pumice, etc. to allow for lots of air pockets.
