AH! I hate that!
I have 3 fish temporarily homed in 1 gallon critter keepers until I get my 10 gallon up and running. All 3 have finrot from petstore so I am religiously keeping up with daily water changes every morning.. Daily water changes are a pain sometimes! Especially if you get in a hurry (which I always am..i'm a busy lady!
) I messed up once and the water was 95!
I ended up dumping it out and starting over rather than waiting...I'm very impatient...
Now I have a thermometer that I place under the running water before I fill the critter keepers and dechlorinate.It helps keep the temperature just right. Works like a charm.