Anybody have advice for how to get Hoyas to grow? I’ve had one for two years and the other for a year and neither have put out too much new growth since getting them. They are both in a chunky bark potting mix and get fertilized with orchid fertilizer every month (heard it helps them bloom? Idk if that’s true though). They are also in a cabinet with 12 hr grow lights, 60-80% humidity and 70-80 degrees. Are they just slow growers? Don’t have that much experience with Hoyas. The latest growth on the crimson queen is all white so not sure whether to cut it off?