Thanks lil'brother.
Yeah I think I might invest in a bottle of Superthrive...'cos I have lots of other plants here as well. Have you actually used it on orchids before? UGH.
They've been living outside, but I think I may need to invest in a table and bring them all inside (I have 3 pots of Dens. and 2 pots of Cym) The Cym are inside and seem quite happy---but they are cooler weathered orchids.
One of the weaker canes looks like it is developing a new cane from an eye---it's so hard to tell as they're only 3 days new.
Do you mist your Dens around the roots---they're marginally exposed. Like 1-3 cms around the base of the cane. And look pretty white.