Since it is winter where you are, you can really cut back on the water. It's in a dormant state right now. I don't start watering and fertilizing normally until I see leaves and roots on my new growth and I start to cut back on the water and fertilizer after the last leaf forms on the pseudobulb. After the leaves fall off it is dormant and then my loddigessii doesn't get any water or fertilizer, which is for almost 3 months for me. I might lightly mist it (this was still a young plant for the last two years) but this year I am going to try and just let it get a nice hard rest. My loddigesii takes temps down into the high 30's and mid 40's for a few weeks, it was kept bone dry during this time, and is growing beautifully this year!
Here is a link for the member project thread that was for the den. loddigesii
Dendrobium loddigesii (Project 10 Cool - Spring 2010)