Growing Hoya sp. aff. thomsonii

I have had to start this plant over a number of times, because of root rot and other maladies. H. thomsonii is a plant that does best in natural light where it can respond to changes in day length. Finally this year I tricked it by moving it from a grow tent with 15 hour days to one that had 12 hour days, and it immediately started to bud up. This go around I am growing it in coconut husk.