let me second the neofinetia falcata suggestion as the 'pretty much undestrucatible' vanda. mine was in a 4 inch basket hanging up high with cattleyas and getting wet once or twice a week and it was the little engine that could... excellent suggestion

I didn't read every message here... but you wrote your house is 73 degees F / 23C. Vandas tolerate that when healthy, but prefer to be much warmer.

Just a quick note here. Fusarium is definitely an issue with this Vanda coupled with the culture issues.

Remember that Fusarium is very contagious and can spread quickly and silently to your other orchids.

As I have personally disposed over 100 plants in the past due to a single order not segregated long enough, I cannot stress enough the importance of diligent checking and segregation. I will attach photos of examples.