Could you post a picture? It's not clear what plants you mean by white and blue sage.

But even without a picture I imagine your plants have either damped off or are etiolated. If they are 2 - 3 inches high they should have at least one set of true leaves. Do they? And they should not be sprayed overhead and certainly not twice a day. It is the growing medium which needs moisture not the plant foliage. Are you watering them other than the misting? From what you say I think they lack light and have too much moisture on the foliage. But a photo would really help.