Tolumnia really don't like wet feet, especially when they cool.

Grow them either mounted or in small, empty clay pots, as close to the
lights as you can without burning. If you water more than once per day, do
so early in the morning, and certainly no later than whatever time allows
them to be dry by lights-out.

I would recommend finding a way to increase your humidity level, as it's
better for all your plants and you.

--

Ray Barkalow First Rays Orchids
http://www.firstrays.com
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"IiSpankyii" wrote in message
...
I would like to grow Equitants, (Tolumnias) under flouresdent lights, and
was
wondering about the watering. My humidity is low, maybe 30% range, and
temps
are around 75 with the lights on. I have read that you water these plants
early in the day, so the roots have time to dry out before evening, or
else you
risk the threat of rot. It just seems to me that with my low humidity, the
plants would probably lose more water during the day than they absorbed
during
the morning watering. Would watering twice a day compensate for that, or
not?
Any ideas?