What temperature do fish die?

[phillip]

I would like to know what temperature fish die. What is the coldest and the hottest temp in Farenheit that fish die?

 

[catx]

Under 45-50F and over 90F would be the limits, of course that is entirely down to species. A Goldfish or Koi could possibly survive a drop to 50F, but tropical fish like Bettas or Guppies would die. While Discus may be able to survive 90F, it would kill a Goldfish. Each species has different limits.