The hard caned dens are usually the ones that grow upright like most of the hybrids we get now. Yours is a hard caned. The soft caned are the ones that eventually lean over and grow downwards... mine are decidious (drop their leaves annually). I think i'm missing something here .... oh well.
Dendrobiums love lots of light, and some can even take full sun (I got almost all of mine in the full sun). I feed regularly (once every week) and on the fourth week I don't feed. Mine seem to respond better when they dry out between watering but when they are sending out new growths water and feed em. All my dens are grown in a free draining mixture (charcoal, gravel and a little coconut chips).
Well hope that helps. I'm sure others will be able to give you lots more advice.
Lovely den by the way!