Congrats on getting the Onc to bloom. We all know what it was like "the
first time", LOL.

I do question the wisdom of starving and dehydrating your plants in hopes of
getting them to bloom, though. There *are* orchids that want a winter dry
rest in order to flower, but most orchids need regular food and water to
thrive. We don't want to over water or over fertilize, but it can be harmful
to go completely in the opposite direction.

My suggestion: Google your various plants for culture information. I think
if you give them a bit more nourishment you may see more results.

HTH

Diana