Put the keikis over some media that can hold water relatively well since they have much smaller reserves that the adult plants. Don't bury them in the media, allow their roots to penetrate the media on their own accord. My favorie media for anosmum keikis is coconut husk pieces cut into squares. The keikis need to be in shadier spot than the adults until they have produced at least two new canes. The care they get depends on their size, any keiki with just a single cane that is less than six inches long needs a lot more care than one with two canes and some root development. I personally don't cut the canes from my adult plants until they are three years old. Cutting the canes into pieces that are too small, (less than six inches) will produce weaker keikis that will need, initally much more care than the keikis produced by larger pieces. Some of my friend put the pieces of the old canes over wet sand. I personally am happy with whatever keiki I get from my plants and only very rarely cut canes that are younger than three years.