In my opinion, if a new gfci keeps tripping on a tank, there is a short somewhere. I have a gfci and ground probe on all five of my tanks, with the oldest being five years. None of my gfci outlets constantly trip. To me, personal safety is more important than the safety of the tank inhabitants.
I wonder if there is some kind of reputable smart device which will tell you the power has been shut off/breaker tripped.
Does the inkbird app send you a notification if the device loses power?