How Long Before Ich Kills Fish in the USA
However, in a case in central Florida, Ich was responsible for killing fish at 92o F (33o C). To complete its life cycle, Ich requires from less than 4 days (at tempera- tures higher than 75o F or 24o C) to more than 5 weeks (at tempera- tures lower than 45o F or 7o C)….
