Tarev. My Vandas took off when I followed Ellaine's advice to get it out of the vase. I've also been feeding them more often after reading all the experts advice here. And I must admit, I mix superthrive on my food fert
not sure if it helps but psychologically I think it does. I bought a quart from Amazon so it will not cost me a fortune buying the small ones.
I also followed Dr Motes advice to feed it well (blooming food) before the cold snap and after the cold snap.
Elaine, you must have the patience of a saint to haul them back and forth.