Originally Posted By: snrub
Chlorine is a bad thing for fish. The experts can give you a better explanation but sounds like whatever the drinking water was being treated with did not set will with the fish.

This is only a guess, but I would say the color turned the way it did because the initial water treatment killed off a bunch of the established algae and what you are seeing is a new bloom of some other variety of algae.


Yeah, I just saw a Frog on the bank (it's 20 Deg out) and appeared to be dying. Probably everything in the pond will be toast by spring