Thank you so much for the detailed response! This is super helpful.This is what I have currently for my Millbrook. East facing exposure that's in 70s during day and 60s at night, relative humidity 50-90% depending on weather. Non-foliar watering every other day with distilled or R/O water with K-Lite at 25ppm and Green Jungle 1 tablespoon per gallon at every watering, bi-weekly KelpMax 1 tablespoon per gallon. Flush monthly with distilled or R/O. This one is still in old media and will get repotted to grodan grow cubes next week or so. I think your plant may have come in a mix of grodan grow cubes and perlite.
There's a lot of good options for culture that best fit your conditions and the amount of extra time you have to focus on your phrags. Key points being good water (virtually impossible to over water so long as you have good drainage), a little Cal/Mag, intermediate temps and not too much light. Hardest part is making room for more phrags.
eBay is as good or as bad as the seller.eBay!? Nice.
Hey Terry - Did you mean to post a picture with this text?This is the first bloom (open about 5 days) of my Millbrook from the Orchids Limited cross I mentioned above (besseae 'Raging Red' x Nicholle Tower 'Tower of Red'). It is about 9 cm horizontal natural spread. The petals are modestly reflexing posteriorly. I was hoping for a bit more red from the breeding. This diploid flower is not as nice as my polyploid Ouaisne (an Eric Young Orchid Foundation registration like Millbrook) despite similar species makeup (a flip flop of some besseae and dalessandroi). The difference may all be from the polyploid longifolium in Ouaisne. At any rate, I will keep the Millbrook through 1 or 2 more bloomings, but it may not be a keeper in my limited indoor space.