I water mine whenever I am in the GH and think about it. Of course, mine has 6 pseudobulbs and 8 spikes so it probably needs plenty of water. I will have to repot it this year as the new growths are sitting on the edge of the pot. My primary concern is getting the right potting mix. I think my best move will be to look at the mix it is in now and see if I can duplicate it.
Another concern is putting it in the right size pot. Much bigger a pot is going to get rather heavy but I don't want to divide it as yet. I like the show from so many spikes.

Beverly A.