I have four Phals and an Oncidium. The Phals are doing great. Three
are blooming for the second time (two spikes each). The Oncidium
however stopped blooming about 5 months ago and doesn't show any signs
of flower spikes. The leaves look good and it keeps growing new ones.

I've been treating the Oncidium the same was as the Phals. Is that
the right thing to do?