My axolotl Wooper has had a fluffy-looking, white material on his gill. I didn't think it was anything, but its been getting worse, and today a large portion of the gill was white! Once I accidentally touched it and he went crazy, swimming all over the tank for a good 7 seconds before he calmed down. Another one in the tank (there are 3) got it about a week ago, but oddly it went awaqy on its own. The last has remained unaffcted. I have been doing some research on it recently, and is it Columnaris Condrococcus? Should I try dipping him in seawater for 10 minutes for 3 days, or get some sort of medicine, or maybe cutting it off? They are all one year old. I tried posting this somewhere else but nobody responded... please help, and thanks alot in advance!