Calgary has suffered a terrible flood. The water treatment plant is under siege from bacteria parasites, virus, oil and anti freeze from cars, sludge of all kinds, dead animals. AHS confirms. The water is technically safe to drink thanks to low minimal standards imo. The mayor himself just said to make it safe the city was using disinfecting agents and lots of them. Chloromine is likely the weapon of choice. It is a super strong ammonia agent. Look it up if you want. Does not evaporate. Not all dechlor products remove it. Can be lethal to fish. Im not drinking the tap anymore. My fish on rainwater. Now I wonder if friends problems are all this. I changed water last night...checking my fish next.