the goldfish are in an outdoor pond about 160 gallons. The pond has frozen over and she has a bubbler to keep a hole in the ice.. (we're in SC). Last winter the fish were all ok because i t was not as cold. They are not being fed. Only one of the fish is permenatly upside down, the other two seem to be able to right themselves. The plants in the pond are all dorment. It's not my pond, but it's my neighbors. She says the PH is about 7.2 and there are about 7 fish in the pond. Only 3 are having problems. I don't know exactly what kind they are, but they have very deep bodies.