I need to explain a little more.
I grow Dendrobium Phalaenopsis even more like Cattleyas and I prefer to use clay pots exclusively. They should be watered well and dry out.
The Nigro-hirsute types like more moisture, therefore I prefer plastic pots.
Lastly Latouria Dendrobiums have the skinniest roots of these three types so they get a finer mix, less aliflor and more seedling orchiata. Also they get watered more often.
In a 4" pot, I'll water a Phalaenopsis type Dendrobium every week, a nigro-hirsute every 5 days and a Latouria every three days. This is what works for me. The Phalaenopsis type have Cattleya type roots, the nigro-hirsute have thinner roots and the Latouria has skinny roots. This accounts for my differences in watering schedule!
Please feel free to ask questions and again it has been my pleasure!