I have 3 violacea crosses .. and I don't treat them any different than my other phal hybrids and they are happy and healthy
Our growing conditions maybe very different also .. I grow mine indoors in a western exposure window away from any direct sunrays ... I keep a fan blowing on them in the summer as temps can go as high as 90°F .. humidity in the summer is greater than in the winter so they stay a bit moister this time of the year .. I water or fertilize at least once a week .. but check on those days where the temps climb high over a period of time. Mine are in medium grade bark with a bit of sphag moss on top to provide some moisture to the aerials ..
The links I posted do discuss what others provide for their Liodoro ..
Do you know where your daughter picked up this Phal .. I have admired it for a long time