Den senile dormant period ending?
 

First year of having a Den. senile. I grow in my apartment/windowsill with some T5 lights for extra light. About two months ago I stopped watering my mounted plant and hung it closer to the lights. I've been giving it daily (often twice daily) mistings. I've now noticed two new fuzzy green shoots coming along. Both are about 1/4 inch so far. I don't see any root tips yet.

I'm wondering at what point should I resume regular watering?

If you're misting, I wouldn't water until I see roots.