Phightphan
New member
my fish doomed now? How long should I let water sit before I add it to my tank? I did a 25% (ten gallons)water change in my tank and only let the water sit for 3 hours.I honestly thought that's how long it took for the chlorine to disappear but Apparently I was mistaken. Will the ten gallons of water containing chlorine I added kill my Juvenile Jack Dempsey. I am scared and don't want to lose him over a stupid mistake I made.I swear I am such an Idiot!