I had a similar incident years ago where I lost my well established breeding colony of Dwarf frogs due to a dinner guest's daughter playing with the heater. They all died slowly over a 1 week period after I discovered the problem. To this day, I have not been able to reestablish a colony like that.
These trials often help us to become better keepers. To this day I do not own a hang on the back heater. lol
I also had a bout with bloat once years ago. I have not feed bloodworms of any kind since and have never had another bloat problem.