The pot pictured here on the right has been used for a long time by many Hoya enthusiasts.  Everything that I have ever tried to grow in these fails over time.  I will no longer use them.  I don’t know what there is about them, whether it is the shape or side drainage holes, but I have come to the conclusion that they do not work well for me.  Everything eventually rots and it is almost always in this type of pot – use these at your own risk.