What's going on here? It's Summer and the hoyas are growing like crazy. But some of them are having issues. They grow new vines and the leaves dry up when tiny or the whole vine shrivels. I'm getting plants full of ugly knobbly grow points. If a leaf grows to almost full size it is a weird pale colour and drops off. It's like they want to grow but something is holding them back? Yet other varieties next to them are shooting out new leaves and shoots (and flowers!) like crazy.

The species doing this are fungii, one of my Minibelles and two of my pubicalyx. (two other pubicalyx are doing great..) No sign of pests and I've been treating them just in case. I'm misting all of my plants morning and night as it's getting hot here. The plants that are effected are indoors, but next to others that are fine. I thought it might be I'm not watering them enough? Could that be it? I'm scared to water more..