That's really cool observations
To avoid dormant and slower metabolism you need humidity like in the 60-70% and need at least 75°F but no more then 80 for heat. This will stimulate their internal clocks and helps them to stay hungry! Mine are going through their first winter and gained tremendous weight and they have to be held to a diet because they are boarder line fat. It's normal for these frogs to eat a big feast and be uninterested in prey for days.
Good luck with your Grays
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