Hi all, I have had my axolotyl for about 18 mths now with no problems in the past. She has in the last 2 weeks shown signs of swelling around the abdomen and face. It seems to be quickly getting worse and I'm not sure what the problem is. The water chemistry is fine and the water temp is 16 degrees C. It is winter here in Sydney and it has been quite cold recently. I have had a "Shark" filter for about 12 months and have always kept it on the maximum aeration setting. She isn't eating and I'm concerned that perhaps she has this "gas bubble disease" i've read about. How can I tell if she has it and what can i do.