Two app rates on bottle-5ml/gal for two consecutive waterings or 10ml/gal for one watering only.

Did your space go hot right after you applied? Stress and pgrs can do weird things. If room went hot, area immediately under hood may have gone warm in a non-linear fashion. Gravity definately makes plants temp-sensitive for a couple of days.

Nute availibility in compost-based soil goes up w/ microbial activity, which increases ( to a point) with temp- might be making up for the Cornicopia.

Let me know how they look tonight. Sounds like just a blip.