Temperature drop to initiate flowering

[FinnBar]

I appreciate the feedback, thank you all!

my days are around 24C/75F and i try to stay around 18C/64F at nights.
Ray, after i read the "set times for flower spikes" -thread i started thinking that going through all the trouble might be useful for my noid Phals. (i decided not to hijack the thread and started a new one.) i initially was thinking of my 6 Aerangis -articulata, biloba, citrata, distincta, modesta, mooreana- which grow inside a tank in the same room.

Now i also moved two phals in the tank, to protect them from the cold draft and to give them a steady 12 hours of light as our daylight hours are running really low by now.