I have a terrarium that I'm keeping my Adelae in. The humidity is around 70% at all times (I also have some Neps in the terrarium). Whenever I feed the Adelae, however, the food will eventually turn into fungus on the leaves and burn the leaves a bit.
I use freeze dried bloodworms.
Is the only option to let the food stay on the leaves for a while and then remove them after a while?
The other terrarium I have my dews in doesn't suffer from this simply because the humidity is so much lower.
For what it's worth, trying to keep the Adelae in lower-humidity environments hasn't worked well for me. They grow fine but produce little dew. In this current setup they are slimy, dewy messes.