I grow 2 vandas here in Ohio, a noID that I have had since it was tiny and V. coerulescens. I also grow other orchids that are closely related and need the same care. I could not tell how you have yours potted but I have mine in plastic vanda baskets with large chunks of lava rock. My temps are cooler and light is poor so this helps them dry quickly and prevents their roots from rotting. I don't fertilize much until February as the poorer light seems to slow the growth of the plants that like high light and I don't want the salts to build up in the medium. I have a nice south-facing window, so my vandas are lucky. I would recommend a grow light if you think light and temps might be a little low.
The vanda coerulescens is one that might do well in your conditions. It doesn't seem troubled by lower temps and blooms really well for me even with the lower light. Most vandas like warm temps and high light but there are a few that are adaptable. When buying any orchid or plant, I have learned to research conditions it will need and try to figure out how I can give it those conditions. It is always a learning experience. Good luck!
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